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Finding the Fourth Proportional to 34,397.78, 47,469.48 and 19,293.80

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Solution

The fourth proportional to 34,397.78, 47,469.48 and 19,293.80 is: 26,625.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,397.78 : 47,469.48 = 19,293.80 : x
  2. Step 2: Convert to fraction form
    34,397.78/47,469.48 = 19,293.80/x
  3. Step 3: Cross multiply
    34,397.78x = 47,469.48 × 19,293.80
  4. Step 4: Simplify right side
    34,397.78x = 915,866,653.22
  5. Step 5: Solve for x
    x = 915,866,653.22/34,397.78
  6. Step 6: Final answer
    x = 26,625.75

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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.