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Finding the Fourth Proportional to 29,221.88, 40,326.54 and 15,973.88

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Solution

The fourth proportional to 29,221.88, 40,326.54 and 15,973.88 is: 22,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,221.88 : 40,326.54 = 15,973.88 : x
  2. Step 2: Convert to fraction form
    29,221.88/40,326.54 = 15,973.88/x
  3. Step 3: Cross multiply
    29,221.88x = 40,326.54 × 15,973.88
  4. Step 4: Simplify right side
    29,221.88x = 644,171,310.78
  5. Step 5: Solve for x
    x = 644,171,310.78/29,221.88
  6. Step 6: Final answer
    x = 22,044.14

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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.