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Finding the Fourth Proportional to 52,966.40, 79,449.53 and 13,523.54

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Solution

The fourth proportional to 52,966.40, 79,449.53 and 13,523.54 is: 20,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,966.40 : 79,449.53 = 13,523.54 : x
  2. Step 2: Convert to fraction form
    52,966.40/79,449.53 = 13,523.54/x
  3. Step 3: Cross multiply
    52,966.40x = 79,449.53 × 13,523.54
  4. Step 4: Simplify right side
    52,966.40x = 1,074,438,432.07
  5. Step 5: Solve for x
    x = 1,074,438,432.07/52,966.40
  6. Step 6: Final answer
    x = 20,285.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.