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Finding the Fourth Proportional to 9,911.66, 14,882.07 and 4,079.66

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Solution

The fourth proportional to 9,911.66, 14,882.07 and 4,079.66 is: 6,125.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.66 : 14,882.07 = 4,079.66 : x
  2. Step 2: Convert to fraction form
    9,911.66/14,882.07 = 4,079.66/x
  3. Step 3: Cross multiply
    9,911.66x = 14,882.07 × 4,079.66
  4. Step 4: Simplify right side
    9,911.66x = 60,713,785.70
  5. Step 5: Solve for x
    x = 60,713,785.70/9,911.66
  6. Step 6: Final answer
    x = 6,125.49

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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.