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Finding the Fourth Proportional to 17,763.80, 26,627.34 and 6,662.66

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Solution

The fourth proportional to 17,763.80, 26,627.34 and 6,662.66 is: 9,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,763.80 : 26,627.34 = 6,662.66 : x
  2. Step 2: Convert to fraction form
    17,763.80/26,627.34 = 6,662.66/x
  3. Step 3: Cross multiply
    17,763.80x = 26,627.34 × 6,662.66
  4. Step 4: Simplify right side
    17,763.80x = 177,408,913.12
  5. Step 5: Solve for x
    x = 177,408,913.12/17,763.80
  6. Step 6: Final answer
    x = 9,987.10

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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.