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Finding the Fourth Proportional to 8,617.67, 12,926.56 and 3,071.23

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Solution

The fourth proportional to 8,617.67, 12,926.56 and 3,071.23 is: 4,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.67 : 12,926.56 = 3,071.23 : x
  2. Step 2: Convert to fraction form
    8,617.67/12,926.56 = 3,071.23/x
  3. Step 3: Cross multiply
    8,617.67x = 12,926.56 × 3,071.23
  4. Step 4: Simplify right side
    8,617.67x = 39,700,398.87
  5. Step 5: Solve for x
    x = 39,700,398.87/8,617.67
  6. Step 6: Final answer
    x = 4,606.86

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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.