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Finding the Fourth Proportional to 14,801.40, 22,202.10 and 12,814.20

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Solution

The fourth proportional to 14,801.40, 22,202.10 and 12,814.20 is: 19,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,801.40 : 22,202.10 = 12,814.20 : x
  2. Step 2: Convert to fraction form
    14,801.40/22,202.10 = 12,814.20/x
  3. Step 3: Cross multiply
    14,801.40x = 22,202.10 × 12,814.20
  4. Step 4: Simplify right side
    14,801.40x = 284,502,149.82
  5. Step 5: Solve for x
    x = 284,502,149.82/14,801.40
  6. Step 6: Final answer
    x = 19,221.30

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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.