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Finding the Fourth Proportional to 3,275.60, 4,520.12 and 1,859.36

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Solution

The fourth proportional to 3,275.60, 4,520.12 and 1,859.36 is: 2,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.60 : 4,520.12 = 1,859.36 : x
  2. Step 2: Convert to fraction form
    3,275.60/4,520.12 = 1,859.36/x
  3. Step 3: Cross multiply
    3,275.60x = 4,520.12 × 1,859.36
  4. Step 4: Simplify right side
    3,275.60x = 8,404,530.32
  5. Step 5: Solve for x
    x = 8,404,530.32/3,275.60
  6. Step 6: Final answer
    x = 2,565.80

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