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Finding the Fourth Proportional to 6,363.84, 8,782.66 and 3,711.50

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Solution

The fourth proportional to 6,363.84, 8,782.66 and 3,711.50 is: 5,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.84 : 8,782.66 = 3,711.50 : x
  2. Step 2: Convert to fraction form
    6,363.84/8,782.66 = 3,711.50/x
  3. Step 3: Cross multiply
    6,363.84x = 8,782.66 × 3,711.50
  4. Step 4: Simplify right side
    6,363.84x = 32,596,842.59
  5. Step 5: Solve for x
    x = 32,596,842.59/6,363.84
  6. Step 6: Final answer
    x = 5,122.20

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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.