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Finding the Fourth Proportional to 18,996.99, 26,215.14 and 10,498.95

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Solution

The fourth proportional to 18,996.99, 26,215.14 and 10,498.95 is: 14,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.99 : 26,215.14 = 10,498.95 : x
  2. Step 2: Convert to fraction form
    18,996.99/26,215.14 = 10,498.95/x
  3. Step 3: Cross multiply
    18,996.99x = 26,215.14 × 10,498.95
  4. Step 4: Simplify right side
    18,996.99x = 275,231,444.10
  5. Step 5: Solve for x
    x = 275,231,444.10/18,996.99
  6. Step 6: Final answer
    x = 14,488.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.