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Finding the Fourth Proportional to 52,372.60, 72,274.86 and 28,499.92

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Solution

The fourth proportional to 52,372.60, 72,274.86 and 28,499.92 is: 39,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,372.60 : 72,274.86 = 28,499.92 : x
  2. Step 2: Convert to fraction form
    52,372.60/72,274.86 = 28,499.92/x
  3. Step 3: Cross multiply
    52,372.60x = 72,274.86 × 28,499.92
  4. Step 4: Simplify right side
    52,372.60x = 2,059,827,728.01
  5. Step 5: Solve for x
    x = 2,059,827,728.01/52,372.60
  6. Step 6: Final answer
    x = 39,330.26

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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.