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Finding the Fourth Proportional to 1,611.64, 2,415.91 and 1,024.82

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Solution

The fourth proportional to 1,611.64, 2,415.91 and 1,024.82 is: 1,536.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.64 : 2,415.91 = 1,024.82 : x
  2. Step 2: Convert to fraction form
    1,611.64/2,415.91 = 1,024.82/x
  3. Step 3: Cross multiply
    1,611.64x = 2,415.91 × 1,024.82
  4. Step 4: Simplify right side
    1,611.64x = 2,475,869.23
  5. Step 5: Solve for x
    x = 2,475,869.23/1,611.64
  6. Step 6: Final answer
    x = 1,536.24

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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.