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Finding the Fourth Proportional to 61,679.47, 85,119.73 and 37,801.53

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Solution

The fourth proportional to 61,679.47, 85,119.73 and 37,801.53 is: 52,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,679.47 : 85,119.73 = 37,801.53 : x
  2. Step 2: Convert to fraction form
    61,679.47/85,119.73 = 37,801.53/x
  3. Step 3: Cross multiply
    61,679.47x = 85,119.73 × 37,801.53
  4. Step 4: Simplify right side
    61,679.47x = 3,217,656,027.19
  5. Step 5: Solve for x
    x = 3,217,656,027.19/61,679.47
  6. Step 6: Final answer
    x = 52,167.37

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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.