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Finding the Fourth Proportional to 19,934.68, 27,509.70 and 10,983.16

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Solution

The fourth proportional to 19,934.68, 27,509.70 and 10,983.16 is: 15,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.68 : 27,509.70 = 10,983.16 : x
  2. Step 2: Convert to fraction form
    19,934.68/27,509.70 = 10,983.16/x
  3. Step 3: Cross multiply
    19,934.68x = 27,509.70 × 10,983.16
  4. Step 4: Simplify right side
    19,934.68x = 302,143,436.65
  5. Step 5: Solve for x
    x = 302,143,436.65/19,934.68
  6. Step 6: Final answer
    x = 15,156.67

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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.