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Finding the Fourth Proportional to 2,695.83, 4,043.40 and 940.51

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Solution

The fourth proportional to 2,695.83, 4,043.40 and 940.51 is: 1,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.83 : 4,043.40 = 940.51 : x
  2. Step 2: Convert to fraction form
    2,695.83/4,043.40 = 940.51/x
  3. Step 3: Cross multiply
    2,695.83x = 4,043.40 × 940.51
  4. Step 4: Simplify right side
    2,695.83x = 3,802,858.13
  5. Step 5: Solve for x
    x = 3,802,858.13/2,695.83
  6. Step 6: Final answer
    x = 1,410.64

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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.