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Finding the Fourth Proportional to 29,251.92, 43,888.85 and 21,918.18

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Solution

The fourth proportional to 29,251.92, 43,888.85 and 21,918.18 is: 32,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,251.92 : 43,888.85 = 21,918.18 : x
  2. Step 2: Convert to fraction form
    29,251.92/43,888.85 = 21,918.18/x
  3. Step 3: Cross multiply
    29,251.92x = 43,888.85 × 21,918.18
  4. Step 4: Simplify right side
    29,251.92x = 961,963,714.29
  5. Step 5: Solve for x
    x = 961,963,714.29/29,251.92
  6. Step 6: Final answer
    x = 32,885.49

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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.