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Finding the Fourth Proportional to 15,818.01, 23,731.61 and 7,486.53

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Solution

The fourth proportional to 15,818.01, 23,731.61 and 7,486.53 is: 11,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,818.01 : 23,731.61 = 7,486.53 : x
  2. Step 2: Convert to fraction form
    15,818.01/23,731.61 = 7,486.53/x
  3. Step 3: Cross multiply
    15,818.01x = 23,731.61 × 7,486.53
  4. Step 4: Simplify right side
    15,818.01x = 177,667,304.84
  5. Step 5: Solve for x
    x = 177,667,304.84/15,818.01
  6. Step 6: Final answer
    x = 11,231.96

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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.