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Finding the Fourth Proportional to 5,365.68, 7,404 and 3,127.56

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Solution

The fourth proportional to 5,365.68, 7,404 and 3,127.56 is: 4,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365.68 : 7,404 = 3,127.56 : x
  2. Step 2: Convert to fraction form
    5,365.68/7,404 = 3,127.56/x
  3. Step 3: Cross multiply
    5,365.68x = 7,404 × 3,127.56
  4. Step 4: Simplify right side
    5,365.68x = 23,156,454.24
  5. Step 5: Solve for x
    x = 23,156,454.24/5,365.68
  6. Step 6: Final answer
    x = 4,315.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.