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Finding the Fourth Proportional to 11,868.57, 17,802.69 and 3,548.65

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Solution

The fourth proportional to 11,868.57, 17,802.69 and 3,548.65 is: 5,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.57 : 17,802.69 = 3,548.65 : x
  2. Step 2: Convert to fraction form
    11,868.57/17,802.69 = 3,548.65/x
  3. Step 3: Cross multiply
    11,868.57x = 17,802.69 × 3,548.65
  4. Step 4: Simplify right side
    11,868.57x = 63,175,515.87
  5. Step 5: Solve for x
    x = 63,175,515.87/11,868.57
  6. Step 6: Final answer
    x = 5,322.93

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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.