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Finding the Fourth Proportional to 62,939.52, 86,853.32 and 34,639.76

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Solution

The fourth proportional to 62,939.52, 86,853.32 and 34,639.76 is: 47,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,939.52 : 86,853.32 = 34,639.76 : x
  2. Step 2: Convert to fraction form
    62,939.52/86,853.32 = 34,639.76/x
  3. Step 3: Cross multiply
    62,939.52x = 86,853.32 × 34,639.76
  4. Step 4: Simplify right side
    62,939.52x = 3,008,578,160.00
  5. Step 5: Solve for x
    x = 3,008,578,160.00/62,939.52
  6. Step 6: Final answer
    x = 47,801.10

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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.