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Finding the Fourth Proportional to 16,587.21, 22,890.11 and 9,872.76

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Solution

The fourth proportional to 16,587.21, 22,890.11 and 9,872.76 is: 13,624.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,587.21 : 22,890.11 = 9,872.76 : x
  2. Step 2: Convert to fraction form
    16,587.21/22,890.11 = 9,872.76/x
  3. Step 3: Cross multiply
    16,587.21x = 22,890.11 × 9,872.76
  4. Step 4: Simplify right side
    16,587.21x = 225,988,513.04
  5. Step 5: Solve for x
    x = 225,988,513.04/16,587.21
  6. Step 6: Final answer
    x = 13,624.26

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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.