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Finding the Fourth Proportional to 63,140.96, 87,129.86 and 36,283.52

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Solution

The fourth proportional to 63,140.96, 87,129.86 and 36,283.52 is: 50,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,140.96 : 87,129.86 = 36,283.52 : x
  2. Step 2: Convert to fraction form
    63,140.96/87,129.86 = 36,283.52/x
  3. Step 3: Cross multiply
    63,140.96x = 87,129.86 × 36,283.52
  4. Step 4: Simplify right side
    63,140.96x = 3,161,378,017.91
  5. Step 5: Solve for x
    x = 3,161,378,017.91/63,140.96
  6. Step 6: Final answer
    x = 50,068.58

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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.