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Finding the Fourth Proportional to 57,555.73, 86,338.65 and 17,583.74

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Solution

The fourth proportional to 57,555.73, 86,338.65 and 17,583.74 is: 26,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,555.73 : 86,338.65 = 17,583.74 : x
  2. Step 2: Convert to fraction form
    57,555.73/86,338.65 = 17,583.74/x
  3. Step 3: Cross multiply
    57,555.73x = 86,338.65 × 17,583.74
  4. Step 4: Simplify right side
    57,555.73x = 1,518,155,941.86
  5. Step 5: Solve for x
    x = 1,518,155,941.86/57,555.73
  6. Step 6: Final answer
    x = 26,377.15

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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.