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Finding the Fourth Proportional to 40,393.50, 55,747.35 and 23,640.54

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Solution

The fourth proportional to 40,393.50, 55,747.35 and 23,640.54 is: 32,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,393.50 : 55,747.35 = 23,640.54 : x
  2. Step 2: Convert to fraction form
    40,393.50/55,747.35 = 23,640.54/x
  3. Step 3: Cross multiply
    40,393.50x = 55,747.35 × 23,640.54
  4. Step 4: Simplify right side
    40,393.50x = 1,317,897,457.57
  5. Step 5: Solve for x
    x = 1,317,897,457.57/40,393.50
  6. Step 6: Final answer
    x = 32,626.47

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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.