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Finding the Fourth Proportional to 8,859.80, 12,226.56 and 4,880.84

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Solution

The fourth proportional to 8,859.80, 12,226.56 and 4,880.84 is: 6,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.80 : 12,226.56 = 4,880.84 : x
  2. Step 2: Convert to fraction form
    8,859.80/12,226.56 = 4,880.84/x
  3. Step 3: Cross multiply
    8,859.80x = 12,226.56 × 4,880.84
  4. Step 4: Simplify right side
    8,859.80x = 59,675,883.11
  5. Step 5: Solve for x
    x = 59,675,883.11/8,859.80
  6. Step 6: Final answer
    x = 6,735.58

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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.