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Finding the Fourth Proportional to 35,390.65, 48,837.86 and 19,474.69

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Solution

The fourth proportional to 35,390.65, 48,837.86 and 19,474.69 is: 26,874.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.65 : 48,837.86 = 19,474.69 : x
  2. Step 2: Convert to fraction form
    35,390.65/48,837.86 = 19,474.69/x
  3. Step 3: Cross multiply
    35,390.65x = 48,837.86 × 19,474.69
  4. Step 4: Simplify right side
    35,390.65x = 951,102,086.39
  5. Step 5: Solve for x
    x = 951,102,086.39/35,390.65
  6. Step 6: Final answer
    x = 26,874.39

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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.