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Finding the Fourth Proportional to 52,487.40, 72,351.78 and 41,860.20

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Solution

The fourth proportional to 52,487.40, 72,351.78 and 41,860.20 is: 57,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,487.40 : 72,351.78 = 41,860.20 : x
  2. Step 2: Convert to fraction form
    52,487.40/72,351.78 = 41,860.20/x
  3. Step 3: Cross multiply
    52,487.40x = 72,351.78 × 41,860.20
  4. Step 4: Simplify right side
    52,487.40x = 3,028,659,981.16
  5. Step 5: Solve for x
    x = 3,028,659,981.16/52,487.40
  6. Step 6: Final answer
    x = 57,702.61

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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.