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Finding the Fourth Proportional to 44,562.32, 66,835.96 and 20,872.40

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Solution

The fourth proportional to 44,562.32, 66,835.96 and 20,872.40 is: 31,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,562.32 : 66,835.96 = 20,872.40 : x
  2. Step 2: Convert to fraction form
    44,562.32/66,835.96 = 20,872.40/x
  3. Step 3: Cross multiply
    44,562.32x = 66,835.96 × 20,872.40
  4. Step 4: Simplify right side
    44,562.32x = 1,395,026,891.50
  5. Step 5: Solve for x
    x = 1,395,026,891.50/44,562.32
  6. Step 6: Final answer
    x = 31,305.08

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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.