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Finding the Fourth Proportional to 14,866.72, 22,269.84 and 11,929.12

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Solution

The fourth proportional to 14,866.72, 22,269.84 and 11,929.12 is: 17,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,866.72 : 22,269.84 = 11,929.12 : x
  2. Step 2: Convert to fraction form
    14,866.72/22,269.84 = 11,929.12/x
  3. Step 3: Cross multiply
    14,866.72x = 22,269.84 × 11,929.12
  4. Step 4: Simplify right side
    14,866.72x = 265,659,593.74
  5. Step 5: Solve for x
    x = 265,659,593.74/14,866.72
  6. Step 6: Final answer
    x = 17,869.42

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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.