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Finding the Fourth Proportional to 5,061.76, 6,985.18 and 2,793.12

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Solution

The fourth proportional to 5,061.76, 6,985.18 and 2,793.12 is: 3,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,061.76 : 6,985.18 = 2,793.12 : x
  2. Step 2: Convert to fraction form
    5,061.76/6,985.18 = 2,793.12/x
  3. Step 3: Cross multiply
    5,061.76x = 6,985.18 × 2,793.12
  4. Step 4: Simplify right side
    5,061.76x = 19,510,412.78
  5. Step 5: Solve for x
    x = 19,510,412.78/5,061.76
  6. Step 6: Final answer
    x = 3,854.47

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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.