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Finding the Fourth Proportional to 15,179.69, 22,768.71 and 4,649.72

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Solution

The fourth proportional to 15,179.69, 22,768.71 and 4,649.72 is: 6,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179.69 : 22,768.71 = 4,649.72 : x
  2. Step 2: Convert to fraction form
    15,179.69/22,768.71 = 4,649.72/x
  3. Step 3: Cross multiply
    15,179.69x = 22,768.71 × 4,649.72
  4. Step 4: Simplify right side
    15,179.69x = 105,868,149.21
  5. Step 5: Solve for x
    x = 105,868,149.21/15,179.69
  6. Step 6: Final answer
    x = 6,974.33

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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.