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Finding the Fourth Proportional to 2,644.32, 3,652.74 and 1,973.64

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Solution

The fourth proportional to 2,644.32, 3,652.74 and 1,973.64 is: 2,726.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.32 : 3,652.74 = 1,973.64 : x
  2. Step 2: Convert to fraction form
    2,644.32/3,652.74 = 1,973.64/x
  3. Step 3: Cross multiply
    2,644.32x = 3,652.74 × 1,973.64
  4. Step 4: Simplify right side
    2,644.32x = 7,209,193.77
  5. Step 5: Solve for x
    x = 7,209,193.77/2,644.32
  6. Step 6: Final answer
    x = 2,726.29

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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.