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Finding the Fourth Proportional to 55,374.76, 83,049.96 and 25,764.40

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Solution

The fourth proportional to 55,374.76, 83,049.96 and 25,764.40 is: 38,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,374.76 : 83,049.96 = 25,764.40 : x
  2. Step 2: Convert to fraction form
    55,374.76/83,049.96 = 25,764.40/x
  3. Step 3: Cross multiply
    55,374.76x = 83,049.96 × 25,764.40
  4. Step 4: Simplify right side
    55,374.76x = 2,139,732,389.42
  5. Step 5: Solve for x
    x = 2,139,732,389.42/55,374.76
  6. Step 6: Final answer
    x = 38,640.93

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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.