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Finding the Fourth Proportional to 35,428.11, 48,893 and 19,512.55

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Solution

The fourth proportional to 35,428.11, 48,893 and 19,512.55 is: 26,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,428.11 : 48,893 = 19,512.55 : x
  2. Step 2: Convert to fraction form
    35,428.11/48,893 = 19,512.55/x
  3. Step 3: Cross multiply
    35,428.11x = 48,893 × 19,512.55
  4. Step 4: Simplify right side
    35,428.11x = 954,027,107.15
  5. Step 5: Solve for x
    x = 954,027,107.15/35,428.11
  6. Step 6: Final answer
    x = 26,928.54

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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.