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Finding the Fourth Proportional to 55,276.40, 82,898.40 and 25,687.10

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Solution

The fourth proportional to 55,276.40, 82,898.40 and 25,687.10 is: 38,523.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.40 : 82,898.40 = 25,687.10 : x
  2. Step 2: Convert to fraction form
    55,276.40/82,898.40 = 25,687.10/x
  3. Step 3: Cross multiply
    55,276.40x = 82,898.40 × 25,687.10
  4. Step 4: Simplify right side
    55,276.40x = 2,129,419,490.64
  5. Step 5: Solve for x
    x = 2,129,419,490.64/55,276.40
  6. Step 6: Final answer
    x = 38,523.12

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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.