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Finding the Fourth Proportional to 12,159.72, 16,760.22 and 9,637.38

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Solution

The fourth proportional to 12,159.72, 16,760.22 and 9,637.38 is: 13,283.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.72 : 16,760.22 = 9,637.38 : x
  2. Step 2: Convert to fraction form
    12,159.72/16,760.22 = 9,637.38/x
  3. Step 3: Cross multiply
    12,159.72x = 16,760.22 × 9,637.38
  4. Step 4: Simplify right side
    12,159.72x = 161,524,609.02
  5. Step 5: Solve for x
    x = 161,524,609.02/12,159.72
  6. Step 6: Final answer
    x = 13,283.58

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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.