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Finding the Fourth Proportional to 39,802.92, 59,702.82 and 13,507.68

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Solution

The fourth proportional to 39,802.92, 59,702.82 and 13,507.68 is: 20,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.92 : 59,702.82 = 13,507.68 : x
  2. Step 2: Convert to fraction form
    39,802.92/59,702.82 = 13,507.68/x
  3. Step 3: Cross multiply
    39,802.92x = 59,702.82 × 13,507.68
  4. Step 4: Simplify right side
    39,802.92x = 806,446,587.66
  5. Step 5: Solve for x
    x = 806,446,587.66/39,802.92
  6. Step 6: Final answer
    x = 20,260.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.