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Finding the Fourth Proportional to 60,729.30, 91,072.08 and 25,671.68

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Solution

The fourth proportional to 60,729.30, 91,072.08 and 25,671.68 is: 38,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,729.30 : 91,072.08 = 25,671.68 : x
  2. Step 2: Convert to fraction form
    60,729.30/91,072.08 = 25,671.68/x
  3. Step 3: Cross multiply
    60,729.30x = 91,072.08 × 25,671.68
  4. Step 4: Simplify right side
    60,729.30x = 2,337,973,294.69
  5. Step 5: Solve for x
    x = 2,337,973,294.69/60,729.30
  6. Step 6: Final answer
    x = 38,498.28

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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.