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Finding the Fourth Proportional to 4,982.74, 6,874.53 and 3,215.52

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Solution

The fourth proportional to 4,982.74, 6,874.53 and 3,215.52 is: 4,436.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.74 : 6,874.53 = 3,215.52 : x
  2. Step 2: Convert to fraction form
    4,982.74/6,874.53 = 3,215.52/x
  3. Step 3: Cross multiply
    4,982.74x = 6,874.53 × 3,215.52
  4. Step 4: Simplify right side
    4,982.74x = 22,105,188.71
  5. Step 5: Solve for x
    x = 22,105,188.71/4,982.74
  6. Step 6: Final answer
    x = 4,436.35

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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.