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Finding the Fourth Proportional to 34,806.66, 48,045.66 and 20,659.50

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Solution

The fourth proportional to 34,806.66, 48,045.66 and 20,659.50 is: 28,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,806.66 : 48,045.66 = 20,659.50 : x
  2. Step 2: Convert to fraction form
    34,806.66/48,045.66 = 20,659.50/x
  3. Step 3: Cross multiply
    34,806.66x = 48,045.66 × 20,659.50
  4. Step 4: Simplify right side
    34,806.66x = 992,599,235.30
  5. Step 5: Solve for x
    x = 992,599,235.30/34,806.66
  6. Step 6: Final answer
    x = 28,517.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.