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Finding the Fourth Proportional to 14,394.81, 19,864.04 and 8,021.03

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Solution

The fourth proportional to 14,394.81, 19,864.04 and 8,021.03 is: 11,068.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,394.81 : 19,864.04 = 8,021.03 : x
  2. Step 2: Convert to fraction form
    14,394.81/19,864.04 = 8,021.03/x
  3. Step 3: Cross multiply
    14,394.81x = 19,864.04 × 8,021.03
  4. Step 4: Simplify right side
    14,394.81x = 159,329,921.34
  5. Step 5: Solve for x
    x = 159,329,921.34/14,394.81
  6. Step 6: Final answer
    x = 11,068.56

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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.