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Finding the Fourth Proportional to 9,635.38, 13,297.90 and 5,443.90

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Solution

The fourth proportional to 9,635.38, 13,297.90 and 5,443.90 is: 7,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,635.38 : 13,297.90 = 5,443.90 : x
  2. Step 2: Convert to fraction form
    9,635.38/13,297.90 = 5,443.90/x
  3. Step 3: Cross multiply
    9,635.38x = 13,297.90 × 5,443.90
  4. Step 4: Simplify right side
    9,635.38x = 72,392,437.81
  5. Step 5: Solve for x
    x = 72,392,437.81/9,635.38
  6. Step 6: Final answer
    x = 7,513.19

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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.