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Finding the Fourth Proportional to 19,136.48, 28,702.92 and 6,653.48

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Solution

The fourth proportional to 19,136.48, 28,702.92 and 6,653.48 is: 9,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.48 : 28,702.92 = 6,653.48 : x
  2. Step 2: Convert to fraction form
    19,136.48/28,702.92 = 6,653.48/x
  3. Step 3: Cross multiply
    19,136.48x = 28,702.92 × 6,653.48
  4. Step 4: Simplify right side
    19,136.48x = 190,974,304.16
  5. Step 5: Solve for x
    x = 190,974,304.16/19,136.48
  6. Step 6: Final answer
    x = 9,979.59

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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.