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Finding the Fourth Proportional to 8,859.80, 13,267.02 and 8,859.80

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Solution

The fourth proportional to 8,859.80, 13,267.02 and 8,859.80 is: 13,267.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.80 : 13,267.02 = 8,859.80 : x
  2. Step 2: Convert to fraction form
    8,859.80/13,267.02 = 8,859.80/x
  3. Step 3: Cross multiply
    8,859.80x = 13,267.02 × 8,859.80
  4. Step 4: Simplify right side
    8,859.80x = 117,543,143.80
  5. Step 5: Solve for x
    x = 117,543,143.80/8,859.80
  6. Step 6: Final answer
    x = 13,267.02

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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.