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Finding the Fourth Proportional to 8,878.45, 12,252.16 and 4,899.48

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Solution

The fourth proportional to 8,878.45, 12,252.16 and 4,899.48 is: 6,761.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.45 : 12,252.16 = 4,899.48 : x
  2. Step 2: Convert to fraction form
    8,878.45/12,252.16 = 4,899.48/x
  3. Step 3: Cross multiply
    8,878.45x = 12,252.16 × 4,899.48
  4. Step 4: Simplify right side
    8,878.45x = 60,029,212.88
  5. Step 5: Solve for x
    x = 60,029,212.88/8,878.45
  6. Step 6: Final answer
    x = 6,761.23

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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.