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Finding the Fourth Proportional to 12,358.50, 17,054.73 and 6,769.50

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Solution

The fourth proportional to 12,358.50, 17,054.73 and 6,769.50 is: 9,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.50 : 17,054.73 = 6,769.50 : x
  2. Step 2: Convert to fraction form
    12,358.50/17,054.73 = 6,769.50/x
  3. Step 3: Cross multiply
    12,358.50x = 17,054.73 × 6,769.50
  4. Step 4: Simplify right side
    12,358.50x = 115,451,994.74
  5. Step 5: Solve for x
    x = 115,451,994.74/12,358.50
  6. Step 6: Final answer
    x = 9,341.91

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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.