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Finding the Fourth Proportional to 2,752.91, 3,796.90 and 1,856.32

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Solution

The fourth proportional to 2,752.91, 3,796.90 and 1,856.32 is: 2,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.91 : 3,796.90 = 1,856.32 : x
  2. Step 2: Convert to fraction form
    2,752.91/3,796.90 = 1,856.32/x
  3. Step 3: Cross multiply
    2,752.91x = 3,796.90 × 1,856.32
  4. Step 4: Simplify right side
    2,752.91x = 7,048,261.41
  5. Step 5: Solve for x
    x = 7,048,261.41/2,752.91
  6. Step 6: Final answer
    x = 2,560.29

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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.