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Finding the Fourth Proportional to 17,667, 26,501.04 and 5,355

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Solution

The fourth proportional to 17,667, 26,501.04 and 5,355 is: 8,032.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,667 : 26,501.04 = 5,355 : x
  2. Step 2: Convert to fraction form
    17,667/26,501.04 = 5,355/x
  3. Step 3: Cross multiply
    17,667x = 26,501.04 × 5,355
  4. Step 4: Simplify right side
    17,667x = 141,913,069.20
  5. Step 5: Solve for x
    x = 141,913,069.20/17,667
  6. Step 6: Final answer
    x = 8,032.66

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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.