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Finding the Fourth Proportional to 16,586.61, 22,891.61 and 9,512.88

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Solution

The fourth proportional to 16,586.61, 22,891.61 and 9,512.88 is: 13,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,586.61 : 22,891.61 = 9,512.88 : x
  2. Step 2: Convert to fraction form
    16,586.61/22,891.61 = 9,512.88/x
  3. Step 3: Cross multiply
    16,586.61x = 22,891.61 × 9,512.88
  4. Step 4: Simplify right side
    16,586.61x = 217,765,024.48
  5. Step 5: Solve for x
    x = 217,765,024.48/16,586.61
  6. Step 6: Final answer
    x = 13,128.97

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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.