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Finding the Fourth Proportional to 9,591.32, 13,235.99 and 5,342.44

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Solution

The fourth proportional to 9,591.32, 13,235.99 and 5,342.44 is: 7,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,591.32 : 13,235.99 = 5,342.44 : x
  2. Step 2: Convert to fraction form
    9,591.32/13,235.99 = 5,342.44/x
  3. Step 3: Cross multiply
    9,591.32x = 13,235.99 × 5,342.44
  4. Step 4: Simplify right side
    9,591.32x = 70,712,462.68
  5. Step 5: Solve for x
    x = 70,712,462.68/9,591.32
  6. Step 6: Final answer
    x = 7,372.55

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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.