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Finding the Fourth Proportional to 2,716.60, 4,074.90 and 2,392.60

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Solution

The fourth proportional to 2,716.60, 4,074.90 and 2,392.60 is: 3,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.60 : 4,074.90 = 2,392.60 : x
  2. Step 2: Convert to fraction form
    2,716.60/4,074.90 = 2,392.60/x
  3. Step 3: Cross multiply
    2,716.60x = 4,074.90 × 2,392.60
  4. Step 4: Simplify right side
    2,716.60x = 9,749,605.74
  5. Step 5: Solve for x
    x = 9,749,605.74/2,716.60
  6. Step 6: Final answer
    x = 3,588.90

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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.