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Finding the Fourth Proportional to 29,806.80, 44,637.30 and 19,892.40

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Solution

The fourth proportional to 29,806.80, 44,637.30 and 19,892.40 is: 29,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,806.80 : 44,637.30 = 19,892.40 : x
  2. Step 2: Convert to fraction form
    29,806.80/44,637.30 = 19,892.40/x
  3. Step 3: Cross multiply
    29,806.80x = 44,637.30 × 19,892.40
  4. Step 4: Simplify right side
    29,806.80x = 887,943,026.52
  5. Step 5: Solve for x
    x = 887,943,026.52/29,806.80
  6. Step 6: Final answer
    x = 29,789.95

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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.