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Finding the Fourth Proportional to 2,368.73, 3,270.38 and 1,530.72

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Solution

The fourth proportional to 2,368.73, 3,270.38 and 1,530.72 is: 2,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.73 : 3,270.38 = 1,530.72 : x
  2. Step 2: Convert to fraction form
    2,368.73/3,270.38 = 1,530.72/x
  3. Step 3: Cross multiply
    2,368.73x = 3,270.38 × 1,530.72
  4. Step 4: Simplify right side
    2,368.73x = 5,006,028.42
  5. Step 5: Solve for x
    x = 5,006,028.42/2,368.73
  6. Step 6: Final answer
    x = 2,113.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.