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Finding the Fourth Proportional to 8,957.62, 13,508.09 and 8,834.50

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Solution

The fourth proportional to 8,957.62, 13,508.09 and 8,834.50 is: 13,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.62 : 13,508.09 = 8,834.50 : x
  2. Step 2: Convert to fraction form
    8,957.62/13,508.09 = 8,834.50/x
  3. Step 3: Cross multiply
    8,957.62x = 13,508.09 × 8,834.50
  4. Step 4: Simplify right side
    8,957.62x = 119,337,153.56
  5. Step 5: Solve for x
    x = 119,337,153.56/8,957.62
  6. Step 6: Final answer
    x = 13,322.42

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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.