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Finding the Fourth Proportional to 29,042.80, 43,572.30 and 14,252.20

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Solution

The fourth proportional to 29,042.80, 43,572.30 and 14,252.20 is: 21,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,042.80 : 43,572.30 = 14,252.20 : x
  2. Step 2: Convert to fraction form
    29,042.80/43,572.30 = 14,252.20/x
  3. Step 3: Cross multiply
    29,042.80x = 43,572.30 × 14,252.20
  4. Step 4: Simplify right side
    29,042.80x = 621,001,134.06
  5. Step 5: Solve for x
    x = 621,001,134.06/29,042.80
  6. Step 6: Final answer
    x = 21,382.27

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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.