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Finding the Fourth Proportional to 8,926.60, 12,153.44 and 8,898.88

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Solution

The fourth proportional to 8,926.60, 12,153.44 and 8,898.88 is: 12,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.60 : 12,153.44 = 8,898.88 : x
  2. Step 2: Convert to fraction form
    8,926.60/12,153.44 = 8,898.88/x
  3. Step 3: Cross multiply
    8,926.60x = 12,153.44 × 8,898.88
  4. Step 4: Simplify right side
    8,926.60x = 108,152,004.15
  5. Step 5: Solve for x
    x = 108,152,004.15/8,926.60
  6. Step 6: Final answer
    x = 12,115.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.