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Finding the Fourth Proportional to 14,348.56, 19,800.61 and 7,974.99

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Solution

The fourth proportional to 14,348.56, 19,800.61 and 7,974.99 is: 11,005.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,348.56 : 19,800.61 = 7,974.99 : x
  2. Step 2: Convert to fraction form
    14,348.56/19,800.61 = 7,974.99/x
  3. Step 3: Cross multiply
    14,348.56x = 19,800.61 × 7,974.99
  4. Step 4: Simplify right side
    14,348.56x = 157,909,666.74
  5. Step 5: Solve for x
    x = 157,909,666.74/14,348.56
  6. Step 6: Final answer
    x = 11,005.26

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Why These Related Problems?

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