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Finding the Fourth Proportional to 6,641.95, 9,962.89 and 3,168.67

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Solution

The fourth proportional to 6,641.95, 9,962.89 and 3,168.67 is: 4,752.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.95 : 9,962.89 = 3,168.67 : x
  2. Step 2: Convert to fraction form
    6,641.95/9,962.89 = 3,168.67/x
  3. Step 3: Cross multiply
    6,641.95x = 9,962.89 × 3,168.67
  4. Step 4: Simplify right side
    6,641.95x = 31,569,110.66
  5. Step 5: Solve for x
    x = 31,569,110.66/6,641.95
  6. Step 6: Final answer
    x = 4,752.99

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1.5x scale

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.