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Finding the Fourth Proportional to 61,807.60, 92,689.80 and 32,215.60

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Solution

The fourth proportional to 61,807.60, 92,689.80 and 32,215.60 is: 48,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,807.60 : 92,689.80 = 32,215.60 : x
  2. Step 2: Convert to fraction form
    61,807.60/92,689.80 = 32,215.60/x
  3. Step 3: Cross multiply
    61,807.60x = 92,689.80 × 32,215.60
  4. Step 4: Simplify right side
    61,807.60x = 2,986,057,520.88
  5. Step 5: Solve for x
    x = 2,986,057,520.88/61,807.60
  6. Step 6: Final answer
    x = 48,312.14

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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.