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Finding the Fourth Proportional to 71,788.16, 107,682.23 and 19,196.27

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Solution

The fourth proportional to 71,788.16, 107,682.23 and 19,196.27 is: 28,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,788.16 : 107,682.23 = 19,196.27 : x
  2. Step 2: Convert to fraction form
    71,788.16/107,682.23 = 19,196.27/x
  3. Step 3: Cross multiply
    71,788.16x = 107,682.23 × 19,196.27
  4. Step 4: Simplify right side
    71,788.16x = 2,067,097,572.40
  5. Step 5: Solve for x
    x = 2,067,097,572.40/71,788.16
  6. Step 6: Final answer
    x = 28,794.41

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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.