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Finding the Fourth Proportional to 61,752.68, 85,220.30 and 37,865.60

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Solution

The fourth proportional to 61,752.68, 85,220.30 and 37,865.60 is: 52,255.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,752.68 : 85,220.30 = 37,865.60 : x
  2. Step 2: Convert to fraction form
    61,752.68/85,220.30 = 37,865.60/x
  3. Step 3: Cross multiply
    61,752.68x = 85,220.30 × 37,865.60
  4. Step 4: Simplify right side
    61,752.68x = 3,226,917,791.68
  5. Step 5: Solve for x
    x = 3,226,917,791.68/61,752.68
  6. Step 6: Final answer
    x = 52,255.51

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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.