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Finding the Fourth Proportional to 11,603.52, 17,407.98 and 3,812.04

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Solution

The fourth proportional to 11,603.52, 17,407.98 and 3,812.04 is: 5,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.52 : 17,407.98 = 3,812.04 : x
  2. Step 2: Convert to fraction form
    11,603.52/17,407.98 = 3,812.04/x
  3. Step 3: Cross multiply
    11,603.52x = 17,407.98 × 3,812.04
  4. Step 4: Simplify right side
    11,603.52x = 66,359,916.08
  5. Step 5: Solve for x
    x = 66,359,916.08/11,603.52
  6. Step 6: Final answer
    x = 5,718.95

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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.