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Finding the Fourth Proportional to 19,679.98, 29,394.55 and 17,802.99

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Solution

The fourth proportional to 19,679.98, 29,394.55 and 17,802.99 is: 26,591.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.98 : 29,394.55 = 17,802.99 : x
  2. Step 2: Convert to fraction form
    19,679.98/29,394.55 = 17,802.99/x
  3. Step 3: Cross multiply
    19,679.98x = 29,394.55 × 17,802.99
  4. Step 4: Simplify right side
    19,679.98x = 523,310,732.73
  5. Step 5: Solve for x
    x = 523,310,732.73/19,679.98
  6. Step 6: Final answer
    x = 26,591.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.