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Finding the Fourth Proportional to 40,424.48, 60,664.48 and 14,129.26

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Solution

The fourth proportional to 40,424.48, 60,664.48 and 14,129.26 is: 21,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,424.48 : 60,664.48 = 14,129.26 : x
  2. Step 2: Convert to fraction form
    40,424.48/60,664.48 = 14,129.26/x
  3. Step 3: Cross multiply
    40,424.48x = 60,664.48 × 14,129.26
  4. Step 4: Simplify right side
    40,424.48x = 857,144,210.68
  5. Step 5: Solve for x
    x = 857,144,210.68/40,424.48
  6. Step 6: Final answer
    x = 21,203.59

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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.