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Finding the Fourth Proportional to 18,023.72, 27,045.28 and 7,501

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Solution

The fourth proportional to 18,023.72, 27,045.28 and 7,501 is: 11,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,023.72 : 27,045.28 = 7,501 : x
  2. Step 2: Convert to fraction form
    18,023.72/27,045.28 = 7,501/x
  3. Step 3: Cross multiply
    18,023.72x = 27,045.28 × 7,501
  4. Step 4: Simplify right side
    18,023.72x = 202,866,645.28
  5. Step 5: Solve for x
    x = 202,866,645.28/18,023.72
  6. Step 6: Final answer
    x = 11,255.54

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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.