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Finding the Fourth Proportional to 3,809.46, 5,712.42 and 1,617.06

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Solution

The fourth proportional to 3,809.46, 5,712.42 and 1,617.06 is: 2,424.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.46 : 5,712.42 = 1,617.06 : x
  2. Step 2: Convert to fraction form
    3,809.46/5,712.42 = 1,617.06/x
  3. Step 3: Cross multiply
    3,809.46x = 5,712.42 × 1,617.06
  4. Step 4: Simplify right side
    3,809.46x = 9,237,325.89
  5. Step 5: Solve for x
    x = 9,237,325.89/3,809.46
  6. Step 6: Final answer
    x = 2,424.84

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1.5x scale

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.