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Finding the Fourth Proportional to 4,874.33, 7,312.22 and 1,411.13

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Solution

The fourth proportional to 4,874.33, 7,312.22 and 1,411.13 is: 2,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.33 : 7,312.22 = 1,411.13 : x
  2. Step 2: Convert to fraction form
    4,874.33/7,312.22 = 1,411.13/x
  3. Step 3: Cross multiply
    4,874.33x = 7,312.22 × 1,411.13
  4. Step 4: Simplify right side
    4,874.33x = 10,318,509.53
  5. Step 5: Solve for x
    x = 10,318,509.53/4,874.33
  6. Step 6: Final answer
    x = 2,116.91

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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.