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Finding the Fourth Proportional to 6,115.35, 8,443.17 and 3,849.99

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Solution

The fourth proportional to 6,115.35, 8,443.17 and 3,849.99 is: 5,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.35 : 8,443.17 = 3,849.99 : x
  2. Step 2: Convert to fraction form
    6,115.35/8,443.17 = 3,849.99/x
  3. Step 3: Cross multiply
    6,115.35x = 8,443.17 × 3,849.99
  4. Step 4: Simplify right side
    6,115.35x = 32,506,120.07
  5. Step 5: Solve for x
    x = 32,506,120.07/6,115.35
  6. Step 6: Final answer
    x = 5,315.50

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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.