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Finding the Fourth Proportional to 14,966.13, 20,655.72 and 9,001.09

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Solution

The fourth proportional to 14,966.13, 20,655.72 and 9,001.09 is: 12,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,966.13 : 20,655.72 = 9,001.09 : x
  2. Step 2: Convert to fraction form
    14,966.13/20,655.72 = 9,001.09/x
  3. Step 3: Cross multiply
    14,966.13x = 20,655.72 × 9,001.09
  4. Step 4: Simplify right side
    14,966.13x = 185,924,020.55
  5. Step 5: Solve for x
    x = 185,924,020.55/14,966.13
  6. Step 6: Final answer
    x = 12,422.98

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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.