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Finding the Fourth Proportional to 8,871.70, 12,242.78 and 4,893.19

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Solution

The fourth proportional to 8,871.70, 12,242.78 and 4,893.19 is: 6,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.70 : 12,242.78 = 4,893.19 : x
  2. Step 2: Convert to fraction form
    8,871.70/12,242.78 = 4,893.19/x
  3. Step 3: Cross multiply
    8,871.70x = 12,242.78 × 4,893.19
  4. Step 4: Simplify right side
    8,871.70x = 59,906,248.67
  5. Step 5: Solve for x
    x = 59,906,248.67/8,871.70
  6. Step 6: Final answer
    x = 6,752.51

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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.