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Finding the Fourth Proportional to 10,038.74, 13,859.91 and 6,455.23

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Solution

The fourth proportional to 10,038.74, 13,859.91 and 6,455.23 is: 8,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,038.74 : 13,859.91 = 6,455.23 : x
  2. Step 2: Convert to fraction form
    10,038.74/13,859.91 = 6,455.23/x
  3. Step 3: Cross multiply
    10,038.74x = 13,859.91 × 6,455.23
  4. Step 4: Simplify right side
    10,038.74x = 89,468,872.18
  5. Step 5: Solve for x
    x = 89,468,872.18/10,038.74
  6. Step 6: Final answer
    x = 8,912.37

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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.