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Finding the Fourth Proportional to 15,918.72, 23,841.75 and 7,604.61

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Solution

The fourth proportional to 15,918.72, 23,841.75 and 7,604.61 is: 11,389.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.72 : 23,841.75 = 7,604.61 : x
  2. Step 2: Convert to fraction form
    15,918.72/23,841.75 = 7,604.61/x
  3. Step 3: Cross multiply
    15,918.72x = 23,841.75 × 7,604.61
  4. Step 4: Simplify right side
    15,918.72x = 181,307,210.47
  5. Step 5: Solve for x
    x = 181,307,210.47/15,918.72
  6. Step 6: Final answer
    x = 11,389.56

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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.