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Finding the Fourth Proportional to 11,491.95, 17,235.87 and 3,058.50

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Solution

The fourth proportional to 11,491.95, 17,235.87 and 3,058.50 is: 4,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.95 : 17,235.87 = 3,058.50 : x
  2. Step 2: Convert to fraction form
    11,491.95/17,235.87 = 3,058.50/x
  3. Step 3: Cross multiply
    11,491.95x = 17,235.87 × 3,058.50
  4. Step 4: Simplify right side
    11,491.95x = 52,715,908.40
  5. Step 5: Solve for x
    x = 52,715,908.40/11,491.95
  6. Step 6: Final answer
    x = 4,587.20

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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.