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Finding the Fourth Proportional to 56,617.59, 84,938.60 and 17,177.88

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Solution

The fourth proportional to 56,617.59, 84,938.60 and 17,177.88 is: 25,770.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,617.59 : 84,938.60 = 17,177.88 : x
  2. Step 2: Convert to fraction form
    56,617.59/84,938.60 = 17,177.88/x
  3. Step 3: Cross multiply
    56,617.59x = 84,938.60 × 17,177.88
  4. Step 4: Simplify right side
    56,617.59x = 1,459,065,078.17
  5. Step 5: Solve for x
    x = 1,459,065,078.17/56,617.59
  6. Step 6: Final answer
    x = 25,770.53

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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.