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Finding the Fourth Proportional to 32,486.93, 48,691.15 and 15,821.99

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Solution

The fourth proportional to 32,486.93, 48,691.15 and 15,821.99 is: 23,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,486.93 : 48,691.15 = 15,821.99 : x
  2. Step 2: Convert to fraction form
    32,486.93/48,691.15 = 15,821.99/x
  3. Step 3: Cross multiply
    32,486.93x = 48,691.15 × 15,821.99
  4. Step 4: Simplify right side
    32,486.93x = 770,390,888.39
  5. Step 5: Solve for x
    x = 770,390,888.39/32,486.93
  6. Step 6: Final answer
    x = 23,713.87

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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.