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Finding the Fourth Proportional to 8,859.33, 13,219.88 and 8,073.38

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Solution

The fourth proportional to 8,859.33, 13,219.88 and 8,073.38 is: 12,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.33 : 13,219.88 = 8,073.38 : x
  2. Step 2: Convert to fraction form
    8,859.33/13,219.88 = 8,073.38/x
  3. Step 3: Cross multiply
    8,859.33x = 13,219.88 × 8,073.38
  4. Step 4: Simplify right side
    8,859.33x = 106,729,008.33
  5. Step 5: Solve for x
    x = 106,729,008.33/8,859.33
  6. Step 6: Final answer
    x = 12,047.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.