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Finding the Fourth Proportional to 8,711.03, 12,013.03 and 6,718.43

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Solution

The fourth proportional to 8,711.03, 12,013.03 and 6,718.43 is: 9,265.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.03 : 12,013.03 = 6,718.43 : x
  2. Step 2: Convert to fraction form
    8,711.03/12,013.03 = 6,718.43/x
  3. Step 3: Cross multiply
    8,711.03x = 12,013.03 × 6,718.43
  4. Step 4: Simplify right side
    8,711.03x = 80,708,701.14
  5. Step 5: Solve for x
    x = 80,708,701.14/8,711.03
  6. Step 6: Final answer
    x = 9,265.12

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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.