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Finding the Fourth Proportional to 27,200.34, 40,800.51 and 7,480.98

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Solution

The fourth proportional to 27,200.34, 40,800.51 and 7,480.98 is: 11,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,200.34 : 40,800.51 = 7,480.98 : x
  2. Step 2: Convert to fraction form
    27,200.34/40,800.51 = 7,480.98/x
  3. Step 3: Cross multiply
    27,200.34x = 40,800.51 × 7,480.98
  4. Step 4: Simplify right side
    27,200.34x = 305,227,799.30
  5. Step 5: Solve for x
    x = 305,227,799.30/27,200.34
  6. Step 6: Final answer
    x = 11,221.47

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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.