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Finding the Fourth Proportional to 27,908.70, 39,098.10 and 27,908.70

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Solution

The fourth proportional to 27,908.70, 39,098.10 and 27,908.70 is: 39,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.70 : 39,098.10 = 27,908.70 : x
  2. Step 2: Convert to fraction form
    27,908.70/39,098.10 = 27,908.70/x
  3. Step 3: Cross multiply
    27,908.70x = 39,098.10 × 27,908.70
  4. Step 4: Simplify right side
    27,908.70x = 1,091,177,143.47
  5. Step 5: Solve for x
    x = 1,091,177,143.47/27,908.70
  6. Step 6: Final answer
    x = 39,098.10

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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.