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Finding the Fourth Proportional to 55,159.60, 82,737.64 and 17,719.52

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Solution

The fourth proportional to 55,159.60, 82,737.64 and 17,719.52 is: 26,578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,159.60 : 82,737.64 = 17,719.52 : x
  2. Step 2: Convert to fraction form
    55,159.60/82,737.64 = 17,719.52/x
  3. Step 3: Cross multiply
    55,159.60x = 82,737.64 × 17,719.52
  4. Step 4: Simplify right side
    55,159.60x = 1,466,071,266.73
  5. Step 5: Solve for x
    x = 1,466,071,266.73/55,159.60
  6. Step 6: Final answer
    x = 26,578.71

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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.