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Finding the Fourth Proportional to 22,363.99, 30,865.22 and 14,429.30

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Solution

The fourth proportional to 22,363.99, 30,865.22 and 14,429.30 is: 19,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,363.99 : 30,865.22 = 14,429.30 : x
  2. Step 2: Convert to fraction form
    22,363.99/30,865.22 = 14,429.30/x
  3. Step 3: Cross multiply
    22,363.99x = 30,865.22 × 14,429.30
  4. Step 4: Simplify right side
    22,363.99x = 445,363,346.58
  5. Step 5: Solve for x
    x = 445,363,346.58/22,363.99
  6. Step 6: Final answer
    x = 19,914.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.