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Finding the Fourth Proportional to 27,203.72, 40,805.76 and 7,484.36

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Solution

The fourth proportional to 27,203.72, 40,805.76 and 7,484.36 is: 11,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,203.72 : 40,805.76 = 7,484.36 : x
  2. Step 2: Convert to fraction form
    27,203.72/40,805.76 = 7,484.36/x
  3. Step 3: Cross multiply
    27,203.72x = 40,805.76 × 7,484.36
  4. Step 4: Simplify right side
    27,203.72x = 305,404,997.91
  5. Step 5: Solve for x
    x = 305,404,997.91/27,203.72
  6. Step 6: Final answer
    x = 11,226.59

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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.