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Finding the Fourth Proportional to 8,871.47, 12,242.21 and 5,092.01

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Solution

The fourth proportional to 8,871.47, 12,242.21 and 5,092.01 is: 7,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.47 : 12,242.21 = 5,092.01 : x
  2. Step 2: Convert to fraction form
    8,871.47/12,242.21 = 5,092.01/x
  3. Step 3: Cross multiply
    8,871.47x = 12,242.21 × 5,092.01
  4. Step 4: Simplify right side
    8,871.47x = 62,337,369.07
  5. Step 5: Solve for x
    x = 62,337,369.07/8,871.47
  6. Step 6: Final answer
    x = 7,026.73

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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.