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Finding the Fourth Proportional to 16,863.78, 25,306.94 and 7,003.06

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Solution

The fourth proportional to 16,863.78, 25,306.94 and 7,003.06 is: 10,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,863.78 : 25,306.94 = 7,003.06 : x
  2. Step 2: Convert to fraction form
    16,863.78/25,306.94 = 7,003.06/x
  3. Step 3: Cross multiply
    16,863.78x = 25,306.94 × 7,003.06
  4. Step 4: Simplify right side
    16,863.78x = 177,226,019.24
  5. Step 5: Solve for x
    x = 177,226,019.24/16,863.78
  6. Step 6: Final answer
    x = 10,509.27

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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.