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Finding the Fourth Proportional to 3,337.28, 4,605.71 and 1,921.41

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Solution

The fourth proportional to 3,337.28, 4,605.71 and 1,921.41 is: 2,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,337.28 : 4,605.71 = 1,921.41 : x
  2. Step 2: Convert to fraction form
    3,337.28/4,605.71 = 1,921.41/x
  3. Step 3: Cross multiply
    3,337.28x = 4,605.71 × 1,921.41
  4. Step 4: Simplify right side
    3,337.28x = 8,849,447.64
  5. Step 5: Solve for x
    x = 8,849,447.64/3,337.28
  6. Step 6: Final answer
    x = 2,651.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.