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Finding the Fourth Proportional to 64,854.59, 89,491.37 and 36,167.53

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Solution

The fourth proportional to 64,854.59, 89,491.37 and 36,167.53 is: 49,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,854.59 : 89,491.37 = 36,167.53 : x
  2. Step 2: Convert to fraction form
    64,854.59/89,491.37 = 36,167.53/x
  3. Step 3: Cross multiply
    64,854.59x = 89,491.37 × 36,167.53
  4. Step 4: Simplify right side
    64,854.59x = 3,236,681,809.22
  5. Step 5: Solve for x
    x = 3,236,681,809.22/64,854.59
  6. Step 6: Final answer
    x = 49,906.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.