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Finding the Fourth Proportional to 8,778.30, 13,167.28 and 3,848.32

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Solution

The fourth proportional to 8,778.30, 13,167.28 and 3,848.32 is: 5,772.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.30 : 13,167.28 = 3,848.32 : x
  2. Step 2: Convert to fraction form
    8,778.30/13,167.28 = 3,848.32/x
  3. Step 3: Cross multiply
    8,778.30x = 13,167.28 × 3,848.32
  4. Step 4: Simplify right side
    8,778.30x = 50,671,906.97
  5. Step 5: Solve for x
    x = 50,671,906.97/8,778.30
  6. Step 6: Final answer
    x = 5,772.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.