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Finding the Fourth Proportional to 17,107.90, 25,625.40 and 14,920.90

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Solution

The fourth proportional to 17,107.90, 25,625.40 and 14,920.90 is: 22,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,107.90 : 25,625.40 = 14,920.90 : x
  2. Step 2: Convert to fraction form
    17,107.90/25,625.40 = 14,920.90/x
  3. Step 3: Cross multiply
    17,107.90x = 25,625.40 × 14,920.90
  4. Step 4: Simplify right side
    17,107.90x = 382,354,030.86
  5. Step 5: Solve for x
    x = 382,354,030.86/17,107.90
  6. Step 6: Final answer
    x = 22,349.56

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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.