Home / 51,609.10-71,220.26-28,638.69

Finding the Fourth Proportional to 51,609.10, 71,220.26 and 28,638.69

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Solution

The fourth proportional to 51,609.10, 71,220.26 and 28,638.69 is: 39,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,609.10 : 71,220.26 = 28,638.69 : x
  2. Step 2: Convert to fraction form
    51,609.10/71,220.26 = 28,638.69/x
  3. Step 3: Cross multiply
    51,609.10x = 71,220.26 × 28,638.69
  4. Step 4: Simplify right side
    51,609.10x = 2,039,654,947.86
  5. Step 5: Solve for x
    x = 2,039,654,947.86/51,609.10
  6. Step 6: Final answer
    x = 39,521.23

Related Problems

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Half scale
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Double scale
Find fourth proportional to 51,610.10, 71,221.64 and 28,639.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.