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Finding the Fourth Proportional to 29,046.80, 43,462.20 and 21,270.80

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Solution

The fourth proportional to 29,046.80, 43,462.20 and 21,270.80 is: 31,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,046.80 : 43,462.20 = 21,270.80 : x
  2. Step 2: Convert to fraction form
    29,046.80/43,462.20 = 21,270.80/x
  3. Step 3: Cross multiply
    29,046.80x = 43,462.20 × 21,270.80
  4. Step 4: Simplify right side
    29,046.80x = 924,475,763.76
  5. Step 5: Solve for x
    x = 924,475,763.76/29,046.80
  6. Step 6: Final answer
    x = 31,827.11

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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.