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Finding the Fourth Proportional to 19,759.71, 29,633.53 and 10,394.57

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Solution

The fourth proportional to 19,759.71, 29,633.53 and 10,394.57 is: 15,588.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.71 : 29,633.53 = 10,394.57 : x
  2. Step 2: Convert to fraction form
    19,759.71/29,633.53 = 10,394.57/x
  3. Step 3: Cross multiply
    19,759.71x = 29,633.53 × 10,394.57
  4. Step 4: Simplify right side
    19,759.71x = 308,027,801.93
  5. Step 5: Solve for x
    x = 308,027,801.93/19,759.71
  6. Step 6: Final answer
    x = 15,588.68

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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.