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Finding the Fourth Proportional to 8,706.68, 13,060.05 and 2,132.86

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Solution

The fourth proportional to 8,706.68, 13,060.05 and 2,132.86 is: 3,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.68 : 13,060.05 = 2,132.86 : x
  2. Step 2: Convert to fraction form
    8,706.68/13,060.05 = 2,132.86/x
  3. Step 3: Cross multiply
    8,706.68x = 13,060.05 × 2,132.86
  4. Step 4: Simplify right side
    8,706.68x = 27,855,247.58
  5. Step 5: Solve for x
    x = 27,855,247.58/8,706.68
  6. Step 6: Final answer
    x = 3,199.30

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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.