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Finding the Fourth Proportional to 35,251.54, 48,649.08 and 20,912.38

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Solution

The fourth proportional to 35,251.54, 48,649.08 and 20,912.38 is: 28,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,251.54 : 48,649.08 = 20,912.38 : x
  2. Step 2: Convert to fraction form
    35,251.54/48,649.08 = 20,912.38/x
  3. Step 3: Cross multiply
    35,251.54x = 48,649.08 × 20,912.38
  4. Step 4: Simplify right side
    35,251.54x = 1,017,368,047.61
  5. Step 5: Solve for x
    x = 1,017,368,047.61/35,251.54
  6. Step 6: Final answer
    x = 28,860.24

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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.