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Finding the Fourth Proportional to 17,913.80, 26,813.14 and 9,572.96

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Solution

The fourth proportional to 17,913.80, 26,813.14 and 9,572.96 is: 14,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.80 : 26,813.14 = 9,572.96 : x
  2. Step 2: Convert to fraction form
    17,913.80/26,813.14 = 9,572.96/x
  3. Step 3: Cross multiply
    17,913.80x = 26,813.14 × 9,572.96
  4. Step 4: Simplify right side
    17,913.80x = 256,681,116.69
  5. Step 5: Solve for x
    x = 256,681,116.69/17,913.80
  6. Step 6: Final answer
    x = 14,328.68

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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.