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Finding the Fourth Proportional to 19,679.01, 29,470.41 and 10,326.95

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Solution

The fourth proportional to 19,679.01, 29,470.41 and 10,326.95 is: 15,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.01 : 29,470.41 = 10,326.95 : x
  2. Step 2: Convert to fraction form
    19,679.01/29,470.41 = 10,326.95/x
  3. Step 3: Cross multiply
    19,679.01x = 29,470.41 × 10,326.95
  4. Step 4: Simplify right side
    19,679.01x = 304,339,450.55
  5. Step 5: Solve for x
    x = 304,339,450.55/19,679.01
  6. Step 6: Final answer
    x = 15,465.18

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1.5x scale

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.