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Finding the Fourth Proportional to 32,118.68, 48,174.56 and 8,428.61

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Solution

The fourth proportional to 32,118.68, 48,174.56 and 8,428.61 is: 12,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,118.68 : 48,174.56 = 8,428.61 : x
  2. Step 2: Convert to fraction form
    32,118.68/48,174.56 = 8,428.61/x
  3. Step 3: Cross multiply
    32,118.68x = 48,174.56 × 8,428.61
  4. Step 4: Simplify right side
    32,118.68x = 406,044,578.16
  5. Step 5: Solve for x
    x = 406,044,578.16/32,118.68
  6. Step 6: Final answer
    x = 12,642.01

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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.