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Finding the Fourth Proportional to 21,843.31, 32,737.60 and 9,348.70

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Solution

The fourth proportional to 21,843.31, 32,737.60 and 9,348.70 is: 14,011.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.31 : 32,737.60 = 9,348.70 : x
  2. Step 2: Convert to fraction form
    21,843.31/32,737.60 = 9,348.70/x
  3. Step 3: Cross multiply
    21,843.31x = 32,737.60 × 9,348.70
  4. Step 4: Simplify right side
    21,843.31x = 306,054,001.12
  5. Step 5: Solve for x
    x = 306,054,001.12/21,843.31
  6. Step 6: Final answer
    x = 14,011.34

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1.5x scale

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.