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Finding the Fourth Proportional to 8,863.76, 13,294.80 and 2,707.76

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Solution

The fourth proportional to 8,863.76, 13,294.80 and 2,707.76 is: 4,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.76 : 13,294.80 = 2,707.76 : x
  2. Step 2: Convert to fraction form
    8,863.76/13,294.80 = 2,707.76/x
  3. Step 3: Cross multiply
    8,863.76x = 13,294.80 × 2,707.76
  4. Step 4: Simplify right side
    8,863.76x = 35,999,061.17
  5. Step 5: Solve for x
    x = 35,999,061.17/8,863.76
  6. Step 6: Final answer
    x = 4,061.38

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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.