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Finding the Fourth Proportional to 35,862.75, 49,490.60 and 20,958.75

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Solution

The fourth proportional to 35,862.75, 49,490.60 and 20,958.75 is: 28,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,862.75 : 49,490.60 = 20,958.75 : x
  2. Step 2: Convert to fraction form
    35,862.75/49,490.60 = 20,958.75/x
  3. Step 3: Cross multiply
    35,862.75x = 49,490.60 × 20,958.75
  4. Step 4: Simplify right side
    35,862.75x = 1,037,261,007.96
  5. Step 5: Solve for x
    x = 1,037,261,007.96/35,862.75
  6. Step 6: Final answer
    x = 28,923.08

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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.