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Finding the Fourth Proportional to 12,644.81, 18,951.02 and 6,061.13

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Solution

The fourth proportional to 12,644.81, 18,951.02 and 6,061.13 is: 9,083.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.81 : 18,951.02 = 6,061.13 : x
  2. Step 2: Convert to fraction form
    12,644.81/18,951.02 = 6,061.13/x
  3. Step 3: Cross multiply
    12,644.81x = 18,951.02 × 6,061.13
  4. Step 4: Simplify right side
    12,644.81x = 114,864,565.55
  5. Step 5: Solve for x
    x = 114,864,565.55/12,644.81
  6. Step 6: Final answer
    x = 9,083.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.