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Finding the Fourth Proportional to 8,316.74, 12,474.95 and 2,770.49

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Solution

The fourth proportional to 8,316.74, 12,474.95 and 2,770.49 is: 4,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.74 : 12,474.95 = 2,770.49 : x
  2. Step 2: Convert to fraction form
    8,316.74/12,474.95 = 2,770.49/x
  3. Step 3: Cross multiply
    8,316.74x = 12,474.95 × 2,770.49
  4. Step 4: Simplify right side
    8,316.74x = 34,561,648.00
  5. Step 5: Solve for x
    x = 34,561,648.00/8,316.74
  6. Step 6: Final answer
    x = 4,155.68

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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.