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Finding the Fourth Proportional to 2,693.17, 3,715.43 and 1,644.63

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Solution

The fourth proportional to 2,693.17, 3,715.43 and 1,644.63 is: 2,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.17 : 3,715.43 = 1,644.63 : x
  2. Step 2: Convert to fraction form
    2,693.17/3,715.43 = 1,644.63/x
  3. Step 3: Cross multiply
    2,693.17x = 3,715.43 × 1,644.63
  4. Step 4: Simplify right side
    2,693.17x = 6,110,507.64
  5. Step 5: Solve for x
    x = 6,110,507.64/2,693.17
  6. Step 6: Final answer
    x = 2,268.89

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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.