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Finding the Fourth Proportional to 10,424.30, 14,384.99 and 5,707.67

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Solution

The fourth proportional to 10,424.30, 14,384.99 and 5,707.67 is: 7,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.30 : 14,384.99 = 5,707.67 : x
  2. Step 2: Convert to fraction form
    10,424.30/14,384.99 = 5,707.67/x
  3. Step 3: Cross multiply
    10,424.30x = 14,384.99 × 5,707.67
  4. Step 4: Simplify right side
    10,424.30x = 82,104,718.22
  5. Step 5: Solve for x
    x = 82,104,718.22/10,424.30
  6. Step 6: Final answer
    x = 7,876.28

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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.