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Finding the Fourth Proportional to 3,261.84, 4,892.32 and 922.03

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Solution

The fourth proportional to 3,261.84, 4,892.32 and 922.03 is: 1,382.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.84 : 4,892.32 = 922.03 : x
  2. Step 2: Convert to fraction form
    3,261.84/4,892.32 = 922.03/x
  3. Step 3: Cross multiply
    3,261.84x = 4,892.32 × 922.03
  4. Step 4: Simplify right side
    3,261.84x = 4,510,869.36
  5. Step 5: Solve for x
    x = 4,510,869.36/3,261.84
  6. Step 6: Final answer
    x = 1,382.92

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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.