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Finding the Fourth Proportional to 10,379.61, 15,563.43 and 7,096.68

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Solution

The fourth proportional to 10,379.61, 15,563.43 and 7,096.68 is: 10,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.61 : 15,563.43 = 7,096.68 : x
  2. Step 2: Convert to fraction form
    10,379.61/15,563.43 = 7,096.68/x
  3. Step 3: Cross multiply
    10,379.61x = 15,563.43 × 7,096.68
  4. Step 4: Simplify right side
    10,379.61x = 110,448,682.41
  5. Step 5: Solve for x
    x = 110,448,682.41/10,379.61
  6. Step 6: Final answer
    x = 10,640.93

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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.