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Finding the Fourth Proportional to 3,294.59, 4,920.83 and 2,981.74

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Solution

The fourth proportional to 3,294.59, 4,920.83 and 2,981.74 is: 4,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,294.59 : 4,920.83 = 2,981.74 : x
  2. Step 2: Convert to fraction form
    3,294.59/4,920.83 = 2,981.74/x
  3. Step 3: Cross multiply
    3,294.59x = 4,920.83 × 2,981.74
  4. Step 4: Simplify right side
    3,294.59x = 14,672,606.62
  5. Step 5: Solve for x
    x = 14,672,606.62/3,294.59
  6. Step 6: Final answer
    x = 4,453.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.