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Finding the Fourth Proportional to 29,722.58, 40,948.23 and 20,755.88

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Solution

The fourth proportional to 29,722.58, 40,948.23 and 20,755.88 is: 28,594.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,722.58 : 40,948.23 = 20,755.88 : x
  2. Step 2: Convert to fraction form
    29,722.58/40,948.23 = 20,755.88/x
  3. Step 3: Cross multiply
    29,722.58x = 40,948.23 × 20,755.88
  4. Step 4: Simplify right side
    29,722.58x = 849,916,548.09
  5. Step 5: Solve for x
    x = 849,916,548.09/29,722.58
  6. Step 6: Final answer
    x = 28,594.98

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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.