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Finding the Fourth Proportional to 40,388.70, 60,619.05 and 23,727.90

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Solution

The fourth proportional to 40,388.70, 60,619.05 and 23,727.90 is: 35,613.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,388.70 : 60,619.05 = 23,727.90 : x
  2. Step 2: Convert to fraction form
    40,388.70/60,619.05 = 23,727.90/x
  3. Step 3: Cross multiply
    40,388.70x = 60,619.05 × 23,727.90
  4. Step 4: Simplify right side
    40,388.70x = 1,438,362,756.50
  5. Step 5: Solve for x
    x = 1,438,362,756.50/40,388.70
  6. Step 6: Final answer
    x = 35,613.00

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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.