Home / 51,173.01-70,617.69-28,511.91

Finding the Fourth Proportional to 51,173.01, 70,617.69 and 28,511.91

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Solution

The fourth proportional to 51,173.01, 70,617.69 and 28,511.91 is: 39,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,173.01 : 70,617.69 = 28,511.91 : x
  2. Step 2: Convert to fraction form
    51,173.01/70,617.69 = 28,511.91/x
  3. Step 3: Cross multiply
    51,173.01x = 70,617.69 × 28,511.91
  4. Step 4: Simplify right side
    51,173.01x = 2,013,445,221.69
  5. Step 5: Solve for x
    x = 2,013,445,221.69/51,173.01
  6. Step 6: Final answer
    x = 39,345.84

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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.