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Finding the Fourth Proportional to 40,526.48, 60,677.76 and 20,762.48

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Solution

The fourth proportional to 40,526.48, 60,677.76 and 20,762.48 is: 31,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,526.48 : 60,677.76 = 20,762.48 : x
  2. Step 2: Convert to fraction form
    40,526.48/60,677.76 = 20,762.48/x
  3. Step 3: Cross multiply
    40,526.48x = 60,677.76 × 20,762.48
  4. Step 4: Simplify right side
    40,526.48x = 1,259,820,778.44
  5. Step 5: Solve for x
    x = 1,259,820,778.44/40,526.48
  6. Step 6: Final answer
    x = 31,086.36

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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.