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Finding the Fourth Proportional to 8,875.28, 12,241.56 and 6,223.28

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Solution

The fourth proportional to 8,875.28, 12,241.56 and 6,223.28 is: 8,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.28 : 12,241.56 = 6,223.28 : x
  2. Step 2: Convert to fraction form
    8,875.28/12,241.56 = 6,223.28/x
  3. Step 3: Cross multiply
    8,875.28x = 12,241.56 × 6,223.28
  4. Step 4: Simplify right side
    8,875.28x = 76,182,655.52
  5. Step 5: Solve for x
    x = 76,182,655.52/8,875.28
  6. Step 6: Final answer
    x = 8,583.69

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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.