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Finding the Fourth Proportional to 34,351.75, 47,405.42 and 19,447.75

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Solution

The fourth proportional to 34,351.75, 47,405.42 and 19,447.75 is: 26,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,351.75 : 47,405.42 = 19,447.75 : x
  2. Step 2: Convert to fraction form
    34,351.75/47,405.42 = 19,447.75/x
  3. Step 3: Cross multiply
    34,351.75x = 47,405.42 × 19,447.75
  4. Step 4: Simplify right side
    34,351.75x = 921,928,756.81
  5. Step 5: Solve for x
    x = 921,928,756.81/34,351.75
  6. Step 6: Final answer
    x = 26,837.90

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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.