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Finding the Fourth Proportional to 57,444, 79,272.72 and 32,293.68

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Solution

The fourth proportional to 57,444, 79,272.72 and 32,293.68 is: 44,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,444 : 79,272.72 = 32,293.68 : x
  2. Step 2: Convert to fraction form
    57,444/79,272.72 = 32,293.68/x
  3. Step 3: Cross multiply
    57,444x = 79,272.72 × 32,293.68
  4. Step 4: Simplify right side
    57,444x = 2,560,007,852.41
  5. Step 5: Solve for x
    x = 2,560,007,852.41/57,444
  6. Step 6: Final answer
    x = 44,565.28

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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.