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Finding the Fourth Proportional to 8,777.88, 12,113.42 and 4,799.02

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Solution

The fourth proportional to 8,777.88, 12,113.42 and 4,799.02 is: 6,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.88 : 12,113.42 = 4,799.02 : x
  2. Step 2: Convert to fraction form
    8,777.88/12,113.42 = 4,799.02/x
  3. Step 3: Cross multiply
    8,777.88x = 12,113.42 × 4,799.02
  4. Step 4: Simplify right side
    8,777.88x = 58,132,544.85
  5. Step 5: Solve for x
    x = 58,132,544.85/8,777.88
  6. Step 6: Final answer
    x = 6,622.62

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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.