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Finding the Fourth Proportional to 17,838.81, 26,748.18 and 7,305.93

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Solution

The fourth proportional to 17,838.81, 26,748.18 and 7,305.93 is: 10,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,838.81 : 26,748.18 = 7,305.93 : x
  2. Step 2: Convert to fraction form
    17,838.81/26,748.18 = 7,305.93/x
  3. Step 3: Cross multiply
    17,838.81x = 26,748.18 × 7,305.93
  4. Step 4: Simplify right side
    17,838.81x = 195,420,330.71
  5. Step 5: Solve for x
    x = 195,420,330.71/17,838.81
  6. Step 6: Final answer
    x = 10,954.79

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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.