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Finding the Fourth Proportional to 11,702.53, 17,554.88 and 3,912.49

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Solution

The fourth proportional to 11,702.53, 17,554.88 and 3,912.49 is: 5,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,702.53 : 17,554.88 = 3,912.49 : x
  2. Step 2: Convert to fraction form
    11,702.53/17,554.88 = 3,912.49/x
  3. Step 3: Cross multiply
    11,702.53x = 17,554.88 × 3,912.49
  4. Step 4: Simplify right side
    11,702.53x = 68,683,292.45
  5. Step 5: Solve for x
    x = 68,683,292.45/11,702.53
  6. Step 6: Final answer
    x = 5,869.10

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1.5x scale

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.