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Finding the Fourth Proportional to 40,603.20, 55,817.04 and 34,917.12

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Solution

The fourth proportional to 40,603.20, 55,817.04 and 34,917.12 is: 48,000.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,603.20 : 55,817.04 = 34,917.12 : x
  2. Step 2: Convert to fraction form
    40,603.20/55,817.04 = 34,917.12/x
  3. Step 3: Cross multiply
    40,603.20x = 55,817.04 × 34,917.12
  4. Step 4: Simplify right side
    40,603.20x = 1,948,970,283.72
  5. Step 5: Solve for x
    x = 1,948,970,283.72/40,603.20
  6. Step 6: Final answer
    x = 48,000.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.