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Finding the Fourth Proportional to 11,363, 17,044.50 and 3,155

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Solution

The fourth proportional to 11,363, 17,044.50 and 3,155 is: 4,732.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,363 : 17,044.50 = 3,155 : x
  2. Step 2: Convert to fraction form
    11,363/17,044.50 = 3,155/x
  3. Step 3: Cross multiply
    11,363x = 17,044.50 × 3,155
  4. Step 4: Simplify right side
    11,363x = 53,775,397.50
  5. Step 5: Solve for x
    x = 53,775,397.50/11,363
  6. Step 6: Final answer
    x = 4,732.50

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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.