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Finding the Fourth Proportional to 61,965.42, 85,512.36 and 35,109.74

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Solution

The fourth proportional to 61,965.42, 85,512.36 and 35,109.74 is: 48,451.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,965.42 : 85,512.36 = 35,109.74 : x
  2. Step 2: Convert to fraction form
    61,965.42/85,512.36 = 35,109.74/x
  3. Step 3: Cross multiply
    61,965.42x = 85,512.36 × 35,109.74
  4. Step 4: Simplify right side
    61,965.42x = 3,002,316,726.39
  5. Step 5: Solve for x
    x = 3,002,316,726.39/61,965.42
  6. Step 6: Final answer
    x = 48,451.49

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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.