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Finding the Fourth Proportional to 5,691.15, 7,849.80 and 3,333.78

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Solution

The fourth proportional to 5,691.15, 7,849.80 and 3,333.78 is: 4,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.15 : 7,849.80 = 3,333.78 : x
  2. Step 2: Convert to fraction form
    5,691.15/7,849.80 = 3,333.78/x
  3. Step 3: Cross multiply
    5,691.15x = 7,849.80 × 3,333.78
  4. Step 4: Simplify right side
    5,691.15x = 26,169,506.24
  5. Step 5: Solve for x
    x = 26,169,506.24/5,691.15
  6. Step 6: Final answer
    x = 4,598.28

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1.5x scale

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.