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Finding the Fourth Proportional to 3,562.32, 4,916.26 and 1,990.48

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Solution

The fourth proportional to 3,562.32, 4,916.26 and 1,990.48 is: 2,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.32 : 4,916.26 = 1,990.48 : x
  2. Step 2: Convert to fraction form
    3,562.32/4,916.26 = 1,990.48/x
  3. Step 3: Cross multiply
    3,562.32x = 4,916.26 × 1,990.48
  4. Step 4: Simplify right side
    3,562.32x = 9,785,717.20
  5. Step 5: Solve for x
    x = 9,785,717.20/3,562.32
  6. Step 6: Final answer
    x = 2,747.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.