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Finding the Fourth Proportional to 4,679.27, 6,974.51 and 4,323.78

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Solution

The fourth proportional to 4,679.27, 6,974.51 and 4,323.78 is: 6,444.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.27 : 6,974.51 = 4,323.78 : x
  2. Step 2: Convert to fraction form
    4,679.27/6,974.51 = 4,323.78/x
  3. Step 3: Cross multiply
    4,679.27x = 6,974.51 × 4,323.78
  4. Step 4: Simplify right side
    4,679.27x = 30,156,225.23
  5. Step 5: Solve for x
    x = 30,156,225.23/4,679.27
  6. Step 6: Final answer
    x = 6,444.64

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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.