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Finding the Fourth Proportional to 27,401.30, 38,400.70 and 27,401.30

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Solution

The fourth proportional to 27,401.30, 38,400.70 and 27,401.30 is: 38,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,401.30 : 38,400.70 = 27,401.30 : x
  2. Step 2: Convert to fraction form
    27,401.30/38,400.70 = 27,401.30/x
  3. Step 3: Cross multiply
    27,401.30x = 38,400.70 × 27,401.30
  4. Step 4: Simplify right side
    27,401.30x = 1,052,229,100.91
  5. Step 5: Solve for x
    x = 1,052,229,100.91/27,401.30
  6. Step 6: Final answer
    x = 38,400.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.