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Finding the Fourth Proportional to 29,978.40, 44,902.80 and 26,695.20

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Solution

The fourth proportional to 29,978.40, 44,902.80 and 26,695.20 is: 39,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,978.40 : 44,902.80 = 26,695.20 : x
  2. Step 2: Convert to fraction form
    29,978.40/44,902.80 = 26,695.20/x
  3. Step 3: Cross multiply
    29,978.40x = 44,902.80 × 26,695.20
  4. Step 4: Simplify right side
    29,978.40x = 1,198,689,226.56
  5. Step 5: Solve for x
    x = 1,198,689,226.56/29,978.40
  6. Step 6: Final answer
    x = 39,985.10

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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.