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Finding the Fourth Proportional to 27,341.30, 40,968.78 and 19,911.56

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Solution

The fourth proportional to 27,341.30, 40,968.78 and 19,911.56 is: 29,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,341.30 : 40,968.78 = 19,911.56 : x
  2. Step 2: Convert to fraction form
    27,341.30/40,968.78 = 19,911.56/x
  3. Step 3: Cross multiply
    27,341.30x = 40,968.78 × 19,911.56
  4. Step 4: Simplify right side
    27,341.30x = 815,752,321.10
  5. Step 5: Solve for x
    x = 815,752,321.10/27,341.30
  6. Step 6: Final answer
    x = 29,835.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.