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Finding the Fourth Proportional to 75,397.40, 113,024.10 and 27,999.80

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Solution

The fourth proportional to 75,397.40, 113,024.10 and 27,999.80 is: 41,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,397.40 : 113,024.10 = 27,999.80 : x
  2. Step 2: Convert to fraction form
    75,397.40/113,024.10 = 27,999.80/x
  3. Step 3: Cross multiply
    75,397.40x = 113,024.10 × 27,999.80
  4. Step 4: Simplify right side
    75,397.40x = 3,164,652,195.18
  5. Step 5: Solve for x
    x = 3,164,652,195.18/75,397.40
  6. Step 6: Final answer
    x = 41,972.96

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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.