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Finding the Fourth Proportional to 34,690.60, 51,984.06 and 19,086.76

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Solution

The fourth proportional to 34,690.60, 51,984.06 and 19,086.76 is: 28,601.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,690.60 : 51,984.06 = 19,086.76 : x
  2. Step 2: Convert to fraction form
    34,690.60/51,984.06 = 19,086.76/x
  3. Step 3: Cross multiply
    34,690.60x = 51,984.06 × 19,086.76
  4. Step 4: Simplify right side
    34,690.60x = 992,207,277.05
  5. Step 5: Solve for x
    x = 992,207,277.05/34,690.60
  6. Step 6: Final answer
    x = 28,601.62

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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.