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Finding the Fourth Proportional to 61,885.62, 85,410.45 and 36,736.74

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Solution

The fourth proportional to 61,885.62, 85,410.45 and 36,736.74 is: 50,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,885.62 : 85,410.45 = 36,736.74 : x
  2. Step 2: Convert to fraction form
    61,885.62/85,410.45 = 36,736.74/x
  3. Step 3: Cross multiply
    61,885.62x = 85,410.45 × 36,736.74
  4. Step 4: Simplify right side
    61,885.62x = 3,137,701,494.93
  5. Step 5: Solve for x
    x = 3,137,701,494.93/61,885.62
  6. Step 6: Final answer
    x = 50,701.62

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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.