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Finding the Fourth Proportional to 2,365.99, 3,265.15 and 1,318.12

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Solution

The fourth proportional to 2,365.99, 3,265.15 and 1,318.12 is: 1,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,365.99 : 3,265.15 = 1,318.12 : x
  2. Step 2: Convert to fraction form
    2,365.99/3,265.15 = 1,318.12/x
  3. Step 3: Cross multiply
    2,365.99x = 3,265.15 × 1,318.12
  4. Step 4: Simplify right side
    2,365.99x = 4,303,843.19
  5. Step 5: Solve for x
    x = 4,303,843.19/2,365.99
  6. Step 6: Final answer
    x = 1,819.05

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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.