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Finding the Fourth Proportional to 13,488.93, 20,243.99 and 9,358.01

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Solution

The fourth proportional to 13,488.93, 20,243.99 and 9,358.01 is: 14,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.93 : 20,243.99 = 9,358.01 : x
  2. Step 2: Convert to fraction form
    13,488.93/20,243.99 = 9,358.01/x
  3. Step 3: Cross multiply
    13,488.93x = 20,243.99 × 9,358.01
  4. Step 4: Simplify right side
    13,488.93x = 189,443,460.86
  5. Step 5: Solve for x
    x = 189,443,460.86/13,488.93
  6. Step 6: Final answer
    x = 14,044.37

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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.