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Finding the Fourth Proportional to 60,246.39, 90,246.87 and 28,560.41

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Solution

The fourth proportional to 60,246.39, 90,246.87 and 28,560.41 is: 42,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,246.39 : 90,246.87 = 28,560.41 : x
  2. Step 2: Convert to fraction form
    60,246.39/90,246.87 = 28,560.41/x
  3. Step 3: Cross multiply
    60,246.39x = 90,246.87 × 28,560.41
  4. Step 4: Simplify right side
    60,246.39x = 2,577,487,157.18
  5. Step 5: Solve for x
    x = 2,577,487,157.18/60,246.39
  6. Step 6: Final answer
    x = 42,782.43

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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.