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Finding the Fourth Proportional to 5,246.74, 7,878.88 and 3,276.95

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Solution

The fourth proportional to 5,246.74, 7,878.88 and 3,276.95 is: 4,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.74 : 7,878.88 = 3,276.95 : x
  2. Step 2: Convert to fraction form
    5,246.74/7,878.88 = 3,276.95/x
  3. Step 3: Cross multiply
    5,246.74x = 7,878.88 × 3,276.95
  4. Step 4: Simplify right side
    5,246.74x = 25,818,695.82
  5. Step 5: Solve for x
    x = 25,818,695.82/5,246.74
  6. Step 6: Final answer
    x = 4,920.91

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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.