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Finding the Fourth Proportional to 9,603.91, 14,391.28 and 7,127.13

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Solution

The fourth proportional to 9,603.91, 14,391.28 and 7,127.13 is: 10,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,603.91 : 14,391.28 = 7,127.13 : x
  2. Step 2: Convert to fraction form
    9,603.91/14,391.28 = 7,127.13/x
  3. Step 3: Cross multiply
    9,603.91x = 14,391.28 × 7,127.13
  4. Step 4: Simplify right side
    9,603.91x = 102,568,523.43
  5. Step 5: Solve for x
    x = 102,568,523.43/9,603.91
  6. Step 6: Final answer
    x = 10,679.87

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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.