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Finding the Fourth Proportional to 9,235.55, 12,749.82 and 5,459.87

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Solution

The fourth proportional to 9,235.55, 12,749.82 and 5,459.87 is: 7,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235.55 : 12,749.82 = 5,459.87 : x
  2. Step 2: Convert to fraction form
    9,235.55/12,749.82 = 5,459.87/x
  3. Step 3: Cross multiply
    9,235.55x = 12,749.82 × 5,459.87
  4. Step 4: Simplify right side
    9,235.55x = 69,612,371.12
  5. Step 5: Solve for x
    x = 69,612,371.12/9,235.55
  6. Step 6: Final answer
    x = 7,537.43

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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.