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Finding the Fourth Proportional to 40,422.48, 60,661.48 and 14,127.26

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Solution

The fourth proportional to 40,422.48, 60,661.48 and 14,127.26 is: 21,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,422.48 : 60,661.48 = 14,127.26 : x
  2. Step 2: Convert to fraction form
    40,422.48/60,661.48 = 14,127.26/x
  3. Step 3: Cross multiply
    40,422.48x = 60,661.48 × 14,127.26
  4. Step 4: Simplify right side
    40,422.48x = 856,980,499.94
  5. Step 5: Solve for x
    x = 856,980,499.94/40,422.48
  6. Step 6: Final answer
    x = 21,200.59

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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.