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Finding the Fourth Proportional to 27,201.92, 40,798.18 and 7,211.55

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Solution

The fourth proportional to 27,201.92, 40,798.18 and 7,211.55 is: 10,816.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,201.92 : 40,798.18 = 7,211.55 : x
  2. Step 2: Convert to fraction form
    27,201.92/40,798.18 = 7,211.55/x
  3. Step 3: Cross multiply
    27,201.92x = 40,798.18 × 7,211.55
  4. Step 4: Simplify right side
    27,201.92x = 294,217,971.00
  5. Step 5: Solve for x
    x = 294,217,971.00/27,201.92
  6. Step 6: Final answer
    x = 10,816.07

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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.