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Finding the Fourth Proportional to 18,695.59, 28,034.02 and 6,211.24

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Solution

The fourth proportional to 18,695.59, 28,034.02 and 6,211.24 is: 9,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.59 : 28,034.02 = 6,211.24 : x
  2. Step 2: Convert to fraction form
    18,695.59/28,034.02 = 6,211.24/x
  3. Step 3: Cross multiply
    18,695.59x = 28,034.02 × 6,211.24
  4. Step 4: Simplify right side
    18,695.59x = 174,126,026.38
  5. Step 5: Solve for x
    x = 174,126,026.38/18,695.59
  6. Step 6: Final answer
    x = 9,313.75

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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.