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Finding the Fourth Proportional to 8,871.75, 12,239.56 and 5,093.55

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Solution

The fourth proportional to 8,871.75, 12,239.56 and 5,093.55 is: 7,027.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.75 : 12,239.56 = 5,093.55 : x
  2. Step 2: Convert to fraction form
    8,871.75/12,239.56 = 5,093.55/x
  3. Step 3: Cross multiply
    8,871.75x = 12,239.56 × 5,093.55
  4. Step 4: Simplify right side
    8,871.75x = 62,342,810.84
  5. Step 5: Solve for x
    x = 62,342,810.84/8,871.75
  6. Step 6: Final answer
    x = 7,027.12

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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.