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Finding the Fourth Proportional to 19,562.20, 29,364.90 and 10,814.20

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Solution

The fourth proportional to 19,562.20, 29,364.90 and 10,814.20 is: 16,233.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,562.20 : 29,364.90 = 10,814.20 : x
  2. Step 2: Convert to fraction form
    19,562.20/29,364.90 = 10,814.20/x
  3. Step 3: Cross multiply
    19,562.20x = 29,364.90 × 10,814.20
  4. Step 4: Simplify right side
    19,562.20x = 317,557,901.58
  5. Step 5: Solve for x
    x = 317,557,901.58/19,562.20
  6. Step 6: Final answer
    x = 16,233.24

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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.