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Finding the Fourth Proportional to 4,399.86, 6,599.79 and 1,934.58

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Solution

The fourth proportional to 4,399.86, 6,599.79 and 1,934.58 is: 2,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,399.86 : 6,599.79 = 1,934.58 : x
  2. Step 2: Convert to fraction form
    4,399.86/6,599.79 = 1,934.58/x
  3. Step 3: Cross multiply
    4,399.86x = 6,599.79 × 1,934.58
  4. Step 4: Simplify right side
    4,399.86x = 12,767,821.74
  5. Step 5: Solve for x
    x = 12,767,821.74/4,399.86
  6. Step 6: Final answer
    x = 2,901.87

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Similar ratio
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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.