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Finding the Fourth Proportional to 16,587.17, 22,888.78 and 9,871.71

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Solution

The fourth proportional to 16,587.17, 22,888.78 and 9,871.71 is: 13,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,587.17 : 22,888.78 = 9,871.71 : x
  2. Step 2: Convert to fraction form
    16,587.17/22,888.78 = 9,871.71/x
  3. Step 3: Cross multiply
    16,587.17x = 22,888.78 × 9,871.71
  4. Step 4: Simplify right side
    16,587.17x = 225,951,423.09
  5. Step 5: Solve for x
    x = 225,951,423.09/16,587.17
  6. Step 6: Final answer
    x = 13,622.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.