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Finding the Fourth Proportional to 57,556.17, 86,266.89 and 21,994.20

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Solution

The fourth proportional to 57,556.17, 86,266.89 and 21,994.20 is: 32,965.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,556.17 : 86,266.89 = 21,994.20 : x
  2. Step 2: Convert to fraction form
    57,556.17/86,266.89 = 21,994.20/x
  3. Step 3: Cross multiply
    57,556.17x = 86,266.89 × 21,994.20
  4. Step 4: Simplify right side
    57,556.17x = 1,897,371,232.04
  5. Step 5: Solve for x
    x = 1,897,371,232.04/57,556.17
  6. Step 6: Final answer
    x = 32,965.56

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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.