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Finding the Fourth Proportional to 11,690.92, 17,543.61 and 4,765.42

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Solution

The fourth proportional to 11,690.92, 17,543.61 and 4,765.42 is: 7,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.92 : 17,543.61 = 4,765.42 : x
  2. Step 2: Convert to fraction form
    11,690.92/17,543.61 = 4,765.42/x
  3. Step 3: Cross multiply
    11,690.92x = 17,543.61 × 4,765.42
  4. Step 4: Simplify right side
    11,690.92x = 83,602,669.97
  5. Step 5: Solve for x
    x = 83,602,669.97/11,690.92
  6. Step 6: Final answer
    x = 7,151.08

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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.