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Finding the Fourth Proportional to 60,407.90, 90,561.96 and 26,649.86

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Solution

The fourth proportional to 60,407.90, 90,561.96 and 26,649.86 is: 39,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,407.90 : 90,561.96 = 26,649.86 : x
  2. Step 2: Convert to fraction form
    60,407.90/90,561.96 = 26,649.86/x
  3. Step 3: Cross multiply
    60,407.90x = 90,561.96 × 26,649.86
  4. Step 4: Simplify right side
    60,407.90x = 2,413,463,555.33
  5. Step 5: Solve for x
    x = 2,413,463,555.33/60,407.90
  6. Step 6: Final answer
    x = 39,952.78

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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.