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Finding the Fourth Proportional to 52,541.28, 72,505.84 and 28,668.64

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Solution

The fourth proportional to 52,541.28, 72,505.84 and 28,668.64 is: 39,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,541.28 : 72,505.84 = 28,668.64 : x
  2. Step 2: Convert to fraction form
    52,541.28/72,505.84 = 28,668.64/x
  3. Step 3: Cross multiply
    52,541.28x = 72,505.84 × 28,668.64
  4. Step 4: Simplify right side
    52,541.28x = 2,078,643,824.86
  5. Step 5: Solve for x
    x = 2,078,643,824.86/52,541.28
  6. Step 6: Final answer
    x = 39,562.11

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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.