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Finding the Fourth Proportional to 32,873.88, 45,353.42 and 20,116.80

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Solution

The fourth proportional to 32,873.88, 45,353.42 and 20,116.80 is: 27,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,873.88 : 45,353.42 = 20,116.80 : x
  2. Step 2: Convert to fraction form
    32,873.88/45,353.42 = 20,116.80/x
  3. Step 3: Cross multiply
    32,873.88x = 45,353.42 × 20,116.80
  4. Step 4: Simplify right side
    32,873.88x = 912,365,679.46
  5. Step 5: Solve for x
    x = 912,365,679.46/32,873.88
  6. Step 6: Final answer
    x = 27,753.51

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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.