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Finding the Fourth Proportional to 7,003.65, 10,505.28 and 2,073.28

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Solution

The fourth proportional to 7,003.65, 10,505.28 and 2,073.28 is: 3,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.65 : 10,505.28 = 2,073.28 : x
  2. Step 2: Convert to fraction form
    7,003.65/10,505.28 = 2,073.28/x
  3. Step 3: Cross multiply
    7,003.65x = 10,505.28 × 2,073.28
  4. Step 4: Simplify right side
    7,003.65x = 21,780,386.92
  5. Step 5: Solve for x
    x = 21,780,386.92/7,003.65
  6. Step 6: Final answer
    x = 3,109.86

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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.