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Finding the Fourth Proportional to 36,751.68, 50,710.56 and 21,646.80

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Solution

The fourth proportional to 36,751.68, 50,710.56 and 21,646.80 is: 29,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,751.68 : 50,710.56 = 21,646.80 : x
  2. Step 2: Convert to fraction form
    36,751.68/50,710.56 = 21,646.80/x
  3. Step 3: Cross multiply
    36,751.68x = 50,710.56 × 21,646.80
  4. Step 4: Simplify right side
    36,751.68x = 1,097,721,350.21
  5. Step 5: Solve for x
    x = 1,097,721,350.21/36,751.68
  6. Step 6: Final answer
    x = 29,868.60

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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.