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Finding the Fourth Proportional to 35,575.76, 49,098.22 and 20,469

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Solution

The fourth proportional to 35,575.76, 49,098.22 and 20,469 is: 28,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,575.76 : 49,098.22 = 20,469 : x
  2. Step 2: Convert to fraction form
    35,575.76/49,098.22 = 20,469/x
  3. Step 3: Cross multiply
    35,575.76x = 49,098.22 × 20,469
  4. Step 4: Simplify right side
    35,575.76x = 1,004,991,465.18
  5. Step 5: Solve for x
    x = 1,004,991,465.18/35,575.76
  6. Step 6: Final answer
    x = 28,249.33

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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.