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Finding the Fourth Proportional to 52,480.71, 72,422.51 and 28,605.96

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Solution

The fourth proportional to 52,480.71, 72,422.51 and 28,605.96 is: 39,475.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,480.71 : 72,422.51 = 28,605.96 : x
  2. Step 2: Convert to fraction form
    52,480.71/72,422.51 = 28,605.96/x
  3. Step 3: Cross multiply
    52,480.71x = 72,422.51 × 28,605.96
  4. Step 4: Simplify right side
    52,480.71x = 2,071,715,281.13
  5. Step 5: Solve for x
    x = 2,071,715,281.13/52,480.71
  6. Step 6: Final answer
    x = 39,475.75

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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.