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Finding the Fourth Proportional to 11,665.89, 17,498.39 and 3,345.89

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Solution

The fourth proportional to 11,665.89, 17,498.39 and 3,345.89 is: 5,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,665.89 : 17,498.39 = 3,345.89 : x
  2. Step 2: Convert to fraction form
    11,665.89/17,498.39 = 3,345.89/x
  3. Step 3: Cross multiply
    11,665.89x = 17,498.39 × 3,345.89
  4. Step 4: Simplify right side
    11,665.89x = 58,547,583.90
  5. Step 5: Solve for x
    x = 58,547,583.90/11,665.89
  6. Step 6: Final answer
    x = 5,018.70

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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.