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Finding the Fourth Proportional to 27,264.72, 40,899.40 and 7,543.28

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Solution

The fourth proportional to 27,264.72, 40,899.40 and 7,543.28 is: 11,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,264.72 : 40,899.40 = 7,543.28 : x
  2. Step 2: Convert to fraction form
    27,264.72/40,899.40 = 7,543.28/x
  3. Step 3: Cross multiply
    27,264.72x = 40,899.40 × 7,543.28
  4. Step 4: Simplify right side
    27,264.72x = 308,515,626.03
  5. Step 5: Solve for x
    x = 308,515,626.03/27,264.72
  6. Step 6: Final answer
    x = 11,315.56

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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.