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Finding the Fourth Proportional to 9,063.90, 13,579.65 and 7,767.90

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Solution

The fourth proportional to 9,063.90, 13,579.65 and 7,767.90 is: 11,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.90 : 13,579.65 = 7,767.90 : x
  2. Step 2: Convert to fraction form
    9,063.90/13,579.65 = 7,767.90/x
  3. Step 3: Cross multiply
    9,063.90x = 13,579.65 × 7,767.90
  4. Step 4: Simplify right side
    9,063.90x = 105,485,363.24
  5. Step 5: Solve for x
    x = 105,485,363.24/9,063.90
  6. Step 6: Final answer
    x = 11,637.97

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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.