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Finding the Fourth Proportional to 8,947.68, 13,402.32 and 8,701.92

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Solution

The fourth proportional to 8,947.68, 13,402.32 and 8,701.92 is: 13,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.68 : 13,402.32 = 8,701.92 : x
  2. Step 2: Convert to fraction form
    8,947.68/13,402.32 = 8,701.92/x
  3. Step 3: Cross multiply
    8,947.68x = 13,402.32 × 8,701.92
  4. Step 4: Simplify right side
    8,947.68x = 116,625,916.45
  5. Step 5: Solve for x
    x = 116,625,916.45/8,947.68
  6. Step 6: Final answer
    x = 13,034.21

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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.