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Finding the Fourth Proportional to 26,615.76, 39,923.76 and 6,892.92

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Solution

The fourth proportional to 26,615.76, 39,923.76 and 6,892.92 is: 10,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.76 : 39,923.76 = 6,892.92 : x
  2. Step 2: Convert to fraction form
    26,615.76/39,923.76 = 6,892.92/x
  3. Step 3: Cross multiply
    26,615.76x = 39,923.76 × 6,892.92
  4. Step 4: Simplify right side
    26,615.76x = 275,191,283.78
  5. Step 5: Solve for x
    x = 275,191,283.78/26,615.76
  6. Step 6: Final answer
    x = 10,339.41

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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.