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Finding the Fourth Proportional to 55,748.40, 83,687.40 and 33,586.80

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Solution

The fourth proportional to 55,748.40, 83,687.40 and 33,586.80 is: 50,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,748.40 : 83,687.40 = 33,586.80 : x
  2. Step 2: Convert to fraction form
    55,748.40/83,687.40 = 33,586.80/x
  3. Step 3: Cross multiply
    55,748.40x = 83,687.40 × 33,586.80
  4. Step 4: Simplify right side
    55,748.40x = 2,810,791,966.32
  5. Step 5: Solve for x
    x = 2,810,791,966.32/55,748.40
  6. Step 6: Final answer
    x = 50,419.24

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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.