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Finding the Fourth Proportional to 17,108.70, 25,648.65 and 8,900.70

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Solution

The fourth proportional to 17,108.70, 25,648.65 and 8,900.70 is: 13,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,108.70 : 25,648.65 = 8,900.70 : x
  2. Step 2: Convert to fraction form
    17,108.70/25,648.65 = 8,900.70/x
  3. Step 3: Cross multiply
    17,108.70x = 25,648.65 × 8,900.70
  4. Step 4: Simplify right side
    17,108.70x = 228,290,939.06
  5. Step 5: Solve for x
    x = 228,290,939.06/17,108.70
  6. Step 6: Final answer
    x = 13,343.56

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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.