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Finding the Fourth Proportional to 10,341.92, 15,514.80 and 4,791.60

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Solution

The fourth proportional to 10,341.92, 15,514.80 and 4,791.60 is: 7,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,341.92 : 15,514.80 = 4,791.60 : x
  2. Step 2: Convert to fraction form
    10,341.92/15,514.80 = 4,791.60/x
  3. Step 3: Cross multiply
    10,341.92x = 15,514.80 × 4,791.60
  4. Step 4: Simplify right side
    10,341.92x = 74,340,715.68
  5. Step 5: Solve for x
    x = 74,340,715.68/10,341.92
  6. Step 6: Final answer
    x = 7,188.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.