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Finding the Fourth Proportional to 17,108.90, 25,626.90 and 14,921.90

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Solution

The fourth proportional to 17,108.90, 25,626.90 and 14,921.90 is: 22,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,108.90 : 25,626.90 = 14,921.90 : x
  2. Step 2: Convert to fraction form
    17,108.90/25,626.90 = 14,921.90/x
  3. Step 3: Cross multiply
    17,108.90x = 25,626.90 × 14,921.90
  4. Step 4: Simplify right side
    17,108.90x = 382,402,039.11
  5. Step 5: Solve for x
    x = 382,402,039.11/17,108.90
  6. Step 6: Final answer
    x = 22,351.06

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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.