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Finding the Fourth Proportional to 19,241.72, 28,862.60 and 10,493.72

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Solution

The fourth proportional to 19,241.72, 28,862.60 and 10,493.72 is: 15,740.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.72 : 28,862.60 = 10,493.72 : x
  2. Step 2: Convert to fraction form
    19,241.72/28,862.60 = 10,493.72/x
  3. Step 3: Cross multiply
    19,241.72x = 28,862.60 × 10,493.72
  4. Step 4: Simplify right side
    19,241.72x = 302,876,042.87
  5. Step 5: Solve for x
    x = 302,876,042.87/19,241.72
  6. Step 6: Final answer
    x = 15,740.59

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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.