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Finding the Fourth Proportional to 10,378.32, 14,321.97 and 5,662.50

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Solution

The fourth proportional to 10,378.32, 14,321.97 and 5,662.50 is: 7,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.32 : 14,321.97 = 5,662.50 : x
  2. Step 2: Convert to fraction form
    10,378.32/14,321.97 = 5,662.50/x
  3. Step 3: Cross multiply
    10,378.32x = 14,321.97 × 5,662.50
  4. Step 4: Simplify right side
    10,378.32x = 81,098,155.13
  5. Step 5: Solve for x
    x = 81,098,155.13/10,378.32
  6. Step 6: Final answer
    x = 7,814.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.