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Finding the Fourth Proportional to 61,469.81, 84,840.96 and 38,793.57

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Solution

The fourth proportional to 61,469.81, 84,840.96 and 38,793.57 is: 53,543.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,469.81 : 84,840.96 = 38,793.57 : x
  2. Step 2: Convert to fraction form
    61,469.81/84,840.96 = 38,793.57/x
  3. Step 3: Cross multiply
    61,469.81x = 84,840.96 × 38,793.57
  4. Step 4: Simplify right side
    61,469.81x = 3,291,283,720.63
  5. Step 5: Solve for x
    x = 3,291,283,720.63/61,469.81
  6. Step 6: Final answer
    x = 53,543.09

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1.5x scale

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.