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Finding the Fourth Proportional to 35,493.48, 48,982.59 and 20,391.03

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Solution

The fourth proportional to 35,493.48, 48,982.59 and 20,391.03 is: 28,140.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,493.48 : 48,982.59 = 20,391.03 : x
  2. Step 2: Convert to fraction form
    35,493.48/48,982.59 = 20,391.03/x
  3. Step 3: Cross multiply
    35,493.48x = 48,982.59 × 20,391.03
  4. Step 4: Simplify right side
    35,493.48x = 998,805,462.17
  5. Step 5: Solve for x
    x = 998,805,462.17/35,493.48
  6. Step 6: Final answer
    x = 28,140.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.