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Finding the Fourth Proportional to 1,644.68, 2,467.74 and 875.24

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Solution

The fourth proportional to 1,644.68, 2,467.74 and 875.24 is: 1,313.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.68 : 2,467.74 = 875.24 : x
  2. Step 2: Convert to fraction form
    1,644.68/2,467.74 = 875.24/x
  3. Step 3: Cross multiply
    1,644.68x = 2,467.74 × 875.24
  4. Step 4: Simplify right side
    1,644.68x = 2,159,864.76
  5. Step 5: Solve for x
    x = 2,159,864.76/1,644.68
  6. Step 6: Final answer
    x = 1,313.24

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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.