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Finding the Fourth Proportional to 27,401.76, 37,969.02 and 26,789.40

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Solution

The fourth proportional to 27,401.76, 37,969.02 and 26,789.40 is: 37,120.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,401.76 : 37,969.02 = 26,789.40 : x
  2. Step 2: Convert to fraction form
    27,401.76/37,969.02 = 26,789.40/x
  3. Step 3: Cross multiply
    27,401.76x = 37,969.02 × 26,789.40
  4. Step 4: Simplify right side
    27,401.76x = 1,017,167,264.39
  5. Step 5: Solve for x
    x = 1,017,167,264.39/27,401.76
  6. Step 6: Final answer
    x = 37,120.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.