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Finding the Fourth Proportional to 9,329.88, 13,994.60 and 3,781.74

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Solution

The fourth proportional to 9,329.88, 13,994.60 and 3,781.74 is: 5,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.88 : 13,994.60 = 3,781.74 : x
  2. Step 2: Convert to fraction form
    9,329.88/13,994.60 = 3,781.74/x
  3. Step 3: Cross multiply
    9,329.88x = 13,994.60 × 3,781.74
  4. Step 4: Simplify right side
    9,329.88x = 52,923,948.06
  5. Step 5: Solve for x
    x = 52,923,948.06/9,329.88
  6. Step 6: Final answer
    x = 5,672.52

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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.