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Finding the Fourth Proportional to 1,758.56, 2,634.60 and 1,564.16

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Solution

The fourth proportional to 1,758.56, 2,634.60 and 1,564.16 is: 2,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.56 : 2,634.60 = 1,564.16 : x
  2. Step 2: Convert to fraction form
    1,758.56/2,634.60 = 1,564.16/x
  3. Step 3: Cross multiply
    1,758.56x = 2,634.60 × 1,564.16
  4. Step 4: Simplify right side
    1,758.56x = 4,120,935.94
  5. Step 5: Solve for x
    x = 4,120,935.94/1,758.56
  6. Step 6: Final answer
    x = 2,343.36

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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.