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Finding the Fourth Proportional to 75,034.60, 112,584.70 and 28,276.52

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Solution

The fourth proportional to 75,034.60, 112,584.70 and 28,276.52 is: 42,427.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,034.60 : 112,584.70 = 28,276.52 : x
  2. Step 2: Convert to fraction form
    75,034.60/112,584.70 = 28,276.52/x
  3. Step 3: Cross multiply
    75,034.60x = 112,584.70 × 28,276.52
  4. Step 4: Simplify right side
    75,034.60x = 3,183,503,521.24
  5. Step 5: Solve for x
    x = 3,183,503,521.24/75,034.60
  6. Step 6: Final answer
    x = 42,427.14

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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.