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Finding the Fourth Proportional to 9,276.17, 12,793.65 and 8,154.71

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Solution

The fourth proportional to 9,276.17, 12,793.65 and 8,154.71 is: 11,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,276.17 : 12,793.65 = 8,154.71 : x
  2. Step 2: Convert to fraction form
    9,276.17/12,793.65 = 8,154.71/x
  3. Step 3: Cross multiply
    9,276.17x = 12,793.65 × 8,154.71
  4. Step 4: Simplify right side
    9,276.17x = 104,328,505.59
  5. Step 5: Solve for x
    x = 104,328,505.59/9,276.17
  6. Step 6: Final answer
    x = 11,246.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.