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Finding the Fourth Proportional to 69,931.59, 96,502.23 and 39,712.92

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Solution

The fourth proportional to 69,931.59, 96,502.23 and 39,712.92 is: 54,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,931.59 : 96,502.23 = 39,712.92 : x
  2. Step 2: Convert to fraction form
    69,931.59/96,502.23 = 39,712.92/x
  3. Step 3: Cross multiply
    69,931.59x = 96,502.23 × 39,712.92
  4. Step 4: Simplify right side
    69,931.59x = 3,832,385,339.81
  5. Step 5: Solve for x
    x = 3,832,385,339.81/69,931.59
  6. Step 6: Final answer
    x = 54,801.92

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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.