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Finding the Fourth Proportional to 12,480.54, 18,711.56 and 5,899.03

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Solution

The fourth proportional to 12,480.54, 18,711.56 and 5,899.03 is: 8,844.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.54 : 18,711.56 = 5,899.03 : x
  2. Step 2: Convert to fraction form
    12,480.54/18,711.56 = 5,899.03/x
  3. Step 3: Cross multiply
    12,480.54x = 18,711.56 × 5,899.03
  4. Step 4: Simplify right side
    12,480.54x = 110,380,024.29
  5. Step 5: Solve for x
    x = 110,380,024.29/12,480.54
  6. Step 6: Final answer
    x = 8,844.17

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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.