Home / 51,191.69-70,650.27-28,532.75

Finding the Fourth Proportional to 51,191.69, 70,650.27 and 28,532.75

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Solution

The fourth proportional to 51,191.69, 70,650.27 and 28,532.75 is: 39,378.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,191.69 : 70,650.27 = 28,532.75 : x
  2. Step 2: Convert to fraction form
    51,191.69/70,650.27 = 28,532.75/x
  3. Step 3: Cross multiply
    51,191.69x = 70,650.27 × 28,532.75
  4. Step 4: Simplify right side
    51,191.69x = 2,015,846,491.34
  5. Step 5: Solve for x
    x = 2,015,846,491.34/51,191.69
  6. Step 6: Final answer
    x = 39,378.39

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Double scale
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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.