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Finding the Fourth Proportional to 9,375.62, 12,941.62 and 5,398.32

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Solution

The fourth proportional to 9,375.62, 12,941.62 and 5,398.32 is: 7,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.62 : 12,941.62 = 5,398.32 : x
  2. Step 2: Convert to fraction form
    9,375.62/12,941.62 = 5,398.32/x
  3. Step 3: Cross multiply
    9,375.62x = 12,941.62 × 5,398.32
  4. Step 4: Simplify right side
    9,375.62x = 69,862,992.58
  5. Step 5: Solve for x
    x = 69,862,992.58/9,375.62
  6. Step 6: Final answer
    x = 7,451.56

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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.