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Finding the Fourth Proportional to 1,964.66, 2,708.51 and 1,567.66

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Solution

The fourth proportional to 1,964.66, 2,708.51 and 1,567.66 is: 2,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.66 : 2,708.51 = 1,567.66 : x
  2. Step 2: Convert to fraction form
    1,964.66/2,708.51 = 1,567.66/x
  3. Step 3: Cross multiply
    1,964.66x = 2,708.51 × 1,567.66
  4. Step 4: Simplify right side
    1,964.66x = 4,246,009.24
  5. Step 5: Solve for x
    x = 4,246,009.24/1,964.66
  6. Step 6: Final answer
    x = 2,161.20

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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.