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Finding the Fourth Proportional to 10,666.48, 15,991.96 and 5,042.16

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Solution

The fourth proportional to 10,666.48, 15,991.96 and 5,042.16 is: 7,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.48 : 15,991.96 = 5,042.16 : x
  2. Step 2: Convert to fraction form
    10,666.48/15,991.96 = 5,042.16/x
  3. Step 3: Cross multiply
    10,666.48x = 15,991.96 × 5,042.16
  4. Step 4: Simplify right side
    10,666.48x = 80,634,021.03
  5. Step 5: Solve for x
    x = 80,634,021.03/10,666.48
  6. Step 6: Final answer
    x = 7,559.57

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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.