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Finding the Fourth Proportional to 16,701.90, 25,018.82 and 7,910.16

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Solution

The fourth proportional to 16,701.90, 25,018.82 and 7,910.16 is: 11,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,701.90 : 25,018.82 = 7,910.16 : x
  2. Step 2: Convert to fraction form
    16,701.90/25,018.82 = 7,910.16/x
  3. Step 3: Cross multiply
    16,701.90x = 25,018.82 × 7,910.16
  4. Step 4: Simplify right side
    16,701.90x = 197,902,869.21
  5. Step 5: Solve for x
    x = 197,902,869.21/16,701.90
  6. Step 6: Final answer
    x = 11,849.12

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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.