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Finding the Fourth Proportional to 61,432.80, 92,003.40 and 37,813.20

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Solution

The fourth proportional to 61,432.80, 92,003.40 and 37,813.20 is: 56,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,432.80 : 92,003.40 = 37,813.20 : x
  2. Step 2: Convert to fraction form
    61,432.80/92,003.40 = 37,813.20/x
  3. Step 3: Cross multiply
    61,432.80x = 92,003.40 × 37,813.20
  4. Step 4: Simplify right side
    61,432.80x = 3,478,942,964.88
  5. Step 5: Solve for x
    x = 3,478,942,964.88/61,432.80
  6. Step 6: Final answer
    x = 56,630.06

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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.