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Finding the Fourth Proportional to 22,008.30, 33,012.45 and 10,916.70

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Solution

The fourth proportional to 22,008.30, 33,012.45 and 10,916.70 is: 16,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,008.30 : 33,012.45 = 10,916.70 : x
  2. Step 2: Convert to fraction form
    22,008.30/33,012.45 = 10,916.70/x
  3. Step 3: Cross multiply
    22,008.30x = 33,012.45 × 10,916.70
  4. Step 4: Simplify right side
    22,008.30x = 360,387,012.92
  5. Step 5: Solve for x
    x = 360,387,012.92/22,008.30
  6. Step 6: Final answer
    x = 16,375.05

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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.