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Finding the Fourth Proportional to 12,673.68, 17,494.08 and 8,707.92

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Solution

The fourth proportional to 12,673.68, 17,494.08 and 8,707.92 is: 12,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.68 : 17,494.08 = 8,707.92 : x
  2. Step 2: Convert to fraction form
    12,673.68/17,494.08 = 8,707.92/x
  3. Step 3: Cross multiply
    12,673.68x = 17,494.08 × 8,707.92
  4. Step 4: Simplify right side
    12,673.68x = 152,337,049.11
  5. Step 5: Solve for x
    x = 152,337,049.11/12,673.68
  6. Step 6: Final answer
    x = 12,019.95

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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.