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Finding the Fourth Proportional to 8,151.64, 12,227.66 and 2,308.30

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Solution

The fourth proportional to 8,151.64, 12,227.66 and 2,308.30 is: 3,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.64 : 12,227.66 = 2,308.30 : x
  2. Step 2: Convert to fraction form
    8,151.64/12,227.66 = 2,308.30/x
  3. Step 3: Cross multiply
    8,151.64x = 12,227.66 × 2,308.30
  4. Step 4: Simplify right side
    8,151.64x = 28,225,074.12
  5. Step 5: Solve for x
    x = 28,225,074.12/8,151.64
  6. Step 6: Final answer
    x = 3,462.50

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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.