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Finding the Fourth Proportional to 8,859.50, 12,225.65 and 4,880.52

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Solution

The fourth proportional to 8,859.50, 12,225.65 and 4,880.52 is: 6,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.50 : 12,225.65 = 4,880.52 : x
  2. Step 2: Convert to fraction form
    8,859.50/12,225.65 = 4,880.52/x
  3. Step 3: Cross multiply
    8,859.50x = 12,225.65 × 4,880.52
  4. Step 4: Simplify right side
    8,859.50x = 59,667,504.94
  5. Step 5: Solve for x
    x = 59,667,504.94/8,859.50
  6. Step 6: Final answer
    x = 6,734.86

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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.