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Finding the Fourth Proportional to 5,381.16, 8,073.24 and 2,457

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Solution

The fourth proportional to 5,381.16, 8,073.24 and 2,457 is: 3,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.16 : 8,073.24 = 2,457 : x
  2. Step 2: Convert to fraction form
    5,381.16/8,073.24 = 2,457/x
  3. Step 3: Cross multiply
    5,381.16x = 8,073.24 × 2,457
  4. Step 4: Simplify right side
    5,381.16x = 19,835,950.68
  5. Step 5: Solve for x
    x = 19,835,950.68/5,381.16
  6. Step 6: Final answer
    x = 3,686.18

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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.