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Finding the Fourth Proportional to 12,252.70, 18,400.65 and 9,486.10

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Solution

The fourth proportional to 12,252.70, 18,400.65 and 9,486.10 is: 14,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.70 : 18,400.65 = 9,486.10 : x
  2. Step 2: Convert to fraction form
    12,252.70/18,400.65 = 9,486.10/x
  3. Step 3: Cross multiply
    12,252.70x = 18,400.65 × 9,486.10
  4. Step 4: Simplify right side
    12,252.70x = 174,550,405.97
  5. Step 5: Solve for x
    x = 174,550,405.97/12,252.70
  6. Step 6: Final answer
    x = 14,245.87

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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.