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Finding the Fourth Proportional to 7,009.50, 10,513.09 and 3,495.79

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Solution

The fourth proportional to 7,009.50, 10,513.09 and 3,495.79 is: 5,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.50 : 10,513.09 = 3,495.79 : x
  2. Step 2: Convert to fraction form
    7,009.50/10,513.09 = 3,495.79/x
  3. Step 3: Cross multiply
    7,009.50x = 10,513.09 × 3,495.79
  4. Step 4: Simplify right side
    7,009.50x = 36,751,572.40
  5. Step 5: Solve for x
    x = 36,751,572.40/7,009.50
  6. Step 6: Final answer
    x = 5,243.11

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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.