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Finding the Fourth Proportional to 8,187.99, 12,281.93 and 2,344.60

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Solution

The fourth proportional to 8,187.99, 12,281.93 and 2,344.60 is: 3,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.99 : 12,281.93 = 2,344.60 : x
  2. Step 2: Convert to fraction form
    8,187.99/12,281.93 = 2,344.60/x
  3. Step 3: Cross multiply
    8,187.99x = 12,281.93 × 2,344.60
  4. Step 4: Simplify right side
    8,187.99x = 28,796,156.41
  5. Step 5: Solve for x
    x = 28,796,156.41/8,187.99
  6. Step 6: Final answer
    x = 3,516.88

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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.