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Finding the Fourth Proportional to 11,574.61, 17,361.90 and 3,255.46

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Solution

The fourth proportional to 11,574.61, 17,361.90 and 3,255.46 is: 4,883.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,574.61 : 17,361.90 = 3,255.46 : x
  2. Step 2: Convert to fraction form
    11,574.61/17,361.90 = 3,255.46/x
  3. Step 3: Cross multiply
    11,574.61x = 17,361.90 × 3,255.46
  4. Step 4: Simplify right side
    11,574.61x = 56,520,979.11
  5. Step 5: Solve for x
    x = 56,520,979.11/11,574.61
  6. Step 6: Final answer
    x = 4,883.19

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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.