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Finding the Fourth Proportional to 57,293.67, 79,064.06 and 31,798.55

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Solution

The fourth proportional to 57,293.67, 79,064.06 and 31,798.55 is: 43,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,293.67 : 79,064.06 = 31,798.55 : x
  2. Step 2: Convert to fraction form
    57,293.67/79,064.06 = 31,798.55/x
  3. Step 3: Cross multiply
    57,293.67x = 79,064.06 × 31,798.55
  4. Step 4: Simplify right side
    57,293.67x = 2,514,122,742.27
  5. Step 5: Solve for x
    x = 2,514,122,742.27/57,293.67
  6. Step 6: Final answer
    x = 43,881.34

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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.