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Finding the Fourth Proportional to 8,871.68, 12,242.40 and 5,094.24

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Solution

The fourth proportional to 8,871.68, 12,242.40 and 5,094.24 is: 7,029.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.68 : 12,242.40 = 5,094.24 : x
  2. Step 2: Convert to fraction form
    8,871.68/12,242.40 = 5,094.24/x
  3. Step 3: Cross multiply
    8,871.68x = 12,242.40 × 5,094.24
  4. Step 4: Simplify right side
    8,871.68x = 62,365,723.78
  5. Step 5: Solve for x
    x = 62,365,723.78/8,871.68
  6. Step 6: Final answer
    x = 7,029.75

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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.