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Finding the Fourth Proportional to 35,138.60, 48,490.87 and 19,222.86

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Solution

The fourth proportional to 35,138.60, 48,490.87 and 19,222.86 is: 26,527.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,138.60 : 48,490.87 = 19,222.86 : x
  2. Step 2: Convert to fraction form
    35,138.60/48,490.87 = 19,222.86/x
  3. Step 3: Cross multiply
    35,138.60x = 48,490.87 × 19,222.86
  4. Step 4: Simplify right side
    35,138.60x = 932,133,205.29
  5. Step 5: Solve for x
    x = 932,133,205.29/35,138.60
  6. Step 6: Final answer
    x = 26,527.33

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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.