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Finding the Fourth Proportional to 8,966.92, 13,531.27 and 8,641.48

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Solution

The fourth proportional to 8,966.92, 13,531.27 and 8,641.48 is: 13,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.92 : 13,531.27 = 8,641.48 : x
  2. Step 2: Convert to fraction form
    8,966.92/13,531.27 = 8,641.48/x
  3. Step 3: Cross multiply
    8,966.92x = 13,531.27 × 8,641.48
  4. Step 4: Simplify right side
    8,966.92x = 116,930,199.08
  5. Step 5: Solve for x
    x = 116,930,199.08/8,966.92
  6. Step 6: Final answer
    x = 13,040.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.