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Finding the Fourth Proportional to 60,262.74, 90,276.44 and 28,627.78

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Solution

The fourth proportional to 60,262.74, 90,276.44 and 28,627.78 is: 42,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,262.74 : 90,276.44 = 28,627.78 : x
  2. Step 2: Convert to fraction form
    60,262.74/90,276.44 = 28,627.78/x
  3. Step 3: Cross multiply
    60,262.74x = 90,276.44 × 28,627.78
  4. Step 4: Simplify right side
    60,262.74x = 2,584,414,063.50
  5. Step 5: Solve for x
    x = 2,584,414,063.50/60,262.74
  6. Step 6: Final answer
    x = 42,885.77

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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.