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Finding the Fourth Proportional to 3,510.66, 5,269.18 and 1,868.59

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Solution

The fourth proportional to 3,510.66, 5,269.18 and 1,868.59 is: 2,804.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.66 : 5,269.18 = 1,868.59 : x
  2. Step 2: Convert to fraction form
    3,510.66/5,269.18 = 1,868.59/x
  3. Step 3: Cross multiply
    3,510.66x = 5,269.18 × 1,868.59
  4. Step 4: Simplify right side
    3,510.66x = 9,845,937.06
  5. Step 5: Solve for x
    x = 9,845,937.06/3,510.66
  6. Step 6: Final answer
    x = 2,804.58

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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.