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Finding the Fourth Proportional to 19,702.59, 29,553.89 and 11,894.91

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Solution

The fourth proportional to 19,702.59, 29,553.89 and 11,894.91 is: 17,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.59 : 29,553.89 = 11,894.91 : x
  2. Step 2: Convert to fraction form
    19,702.59/29,553.89 = 11,894.91/x
  3. Step 3: Cross multiply
    19,702.59x = 29,553.89 × 11,894.91
  4. Step 4: Simplify right side
    19,702.59x = 351,540,802.23
  5. Step 5: Solve for x
    x = 351,540,802.23/19,702.59
  6. Step 6: Final answer
    x = 17,842.37

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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.