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Finding the Fourth Proportional to 34,343.44, 47,390.76 and 19,439.44

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Solution

The fourth proportional to 34,343.44, 47,390.76 and 19,439.44 is: 26,824.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,343.44 : 47,390.76 = 19,439.44 : x
  2. Step 2: Convert to fraction form
    34,343.44/47,390.76 = 19,439.44/x
  3. Step 3: Cross multiply
    34,343.44x = 47,390.76 × 19,439.44
  4. Step 4: Simplify right side
    34,343.44x = 921,249,835.57
  5. Step 5: Solve for x
    x = 921,249,835.57/34,343.44
  6. Step 6: Final answer
    x = 26,824.62

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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.