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Finding the Fourth Proportional to 6,691.78, 9,226.26 and 4,297.53

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Solution

The fourth proportional to 6,691.78, 9,226.26 and 4,297.53 is: 5,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.78 : 9,226.26 = 4,297.53 : x
  2. Step 2: Convert to fraction form
    6,691.78/9,226.26 = 4,297.53/x
  3. Step 3: Cross multiply
    6,691.78x = 9,226.26 × 4,297.53
  4. Step 4: Simplify right side
    6,691.78x = 39,650,129.14
  5. Step 5: Solve for x
    x = 39,650,129.14/6,691.78
  6. Step 6: Final answer
    x = 5,925.20

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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.