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Finding the Fourth Proportional to 13,963.61, 20,948.51 and 4,603.25

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Solution

The fourth proportional to 13,963.61, 20,948.51 and 4,603.25 is: 6,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,963.61 : 20,948.51 = 4,603.25 : x
  2. Step 2: Convert to fraction form
    13,963.61/20,948.51 = 4,603.25/x
  3. Step 3: Cross multiply
    13,963.61x = 20,948.51 × 4,603.25
  4. Step 4: Simplify right side
    13,963.61x = 96,431,228.66
  5. Step 5: Solve for x
    x = 96,431,228.66/13,963.61
  6. Step 6: Final answer
    x = 6,905.90

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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.