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Finding the Fourth Proportional to 8,677.92, 13,001.76 and 6,957.12

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Solution

The fourth proportional to 8,677.92, 13,001.76 and 6,957.12 is: 10,423.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.92 : 13,001.76 = 6,957.12 : x
  2. Step 2: Convert to fraction form
    8,677.92/13,001.76 = 6,957.12/x
  3. Step 3: Cross multiply
    8,677.92x = 13,001.76 × 6,957.12
  4. Step 4: Simplify right side
    8,677.92x = 90,454,804.53
  5. Step 5: Solve for x
    x = 90,454,804.53/8,677.92
  6. Step 6: Final answer
    x = 10,423.56

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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.