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Finding the Fourth Proportional to 60,042.93, 90,065.94 and 28,445.59

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Solution

The fourth proportional to 60,042.93, 90,065.94 and 28,445.59 is: 42,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,042.93 : 90,065.94 = 28,445.59 : x
  2. Step 2: Convert to fraction form
    60,042.93/90,065.94 = 28,445.59/x
  3. Step 3: Cross multiply
    60,042.93x = 90,065.94 × 28,445.59
  4. Step 4: Simplify right side
    60,042.93x = 2,561,978,659.98
  5. Step 5: Solve for x
    x = 2,561,978,659.98/60,042.93
  6. Step 6: Final answer
    x = 42,669.11

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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.