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Finding the Fourth Proportional to 34,718.54, 47,912.04 and 19,404.42

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Solution

The fourth proportional to 34,718.54, 47,912.04 and 19,404.42 is: 26,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,718.54 : 47,912.04 = 19,404.42 : x
  2. Step 2: Convert to fraction form
    34,718.54/47,912.04 = 19,404.42/x
  3. Step 3: Cross multiply
    34,718.54x = 47,912.04 × 19,404.42
  4. Step 4: Simplify right side
    34,718.54x = 929,705,347.22
  5. Step 5: Solve for x
    x = 929,705,347.22/34,718.54
  6. Step 6: Final answer
    x = 26,778.35

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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.