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Finding the Fourth Proportional to 52,618.92, 72,615.18 and 28,747.14

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Solution

The fourth proportional to 52,618.92, 72,615.18 and 28,747.14 is: 39,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,618.92 : 72,615.18 = 28,747.14 : x
  2. Step 2: Convert to fraction form
    52,618.92/72,615.18 = 28,747.14/x
  3. Step 3: Cross multiply
    52,618.92x = 72,615.18 × 28,747.14
  4. Step 4: Simplify right side
    52,618.92x = 2,087,478,745.59
  5. Step 5: Solve for x
    x = 2,087,478,745.59/52,618.92
  6. Step 6: Final answer
    x = 39,671.64

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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.