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Finding the Fourth Proportional to 1,367.45, 2,051.64 and 750.36

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Solution

The fourth proportional to 1,367.45, 2,051.64 and 750.36 is: 1,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.45 : 2,051.64 = 750.36 : x
  2. Step 2: Convert to fraction form
    1,367.45/2,051.64 = 750.36/x
  3. Step 3: Cross multiply
    1,367.45x = 2,051.64 × 750.36
  4. Step 4: Simplify right side
    1,367.45x = 1,539,468.59
  5. Step 5: Solve for x
    x = 1,539,468.59/1,367.45
  6. Step 6: Final answer
    x = 1,125.80

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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.