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Finding the Fourth Proportional to 12,160.68, 18,242.82 and 4,367.68

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Solution

The fourth proportional to 12,160.68, 18,242.82 and 4,367.68 is: 6,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.68 : 18,242.82 = 4,367.68 : x
  2. Step 2: Convert to fraction form
    12,160.68/18,242.82 = 4,367.68/x
  3. Step 3: Cross multiply
    12,160.68x = 18,242.82 × 4,367.68
  4. Step 4: Simplify right side
    12,160.68x = 79,678,800.06
  5. Step 5: Solve for x
    x = 79,678,800.06/12,160.68
  6. Step 6: Final answer
    x = 6,552.17

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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.