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Finding the Fourth Proportional to 64,850.36, 89,493.05 and 37,987.11

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Solution

The fourth proportional to 64,850.36, 89,493.05 and 37,987.11 is: 52,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,850.36 : 89,493.05 = 37,987.11 : x
  2. Step 2: Convert to fraction form
    64,850.36/89,493.05 = 37,987.11/x
  3. Step 3: Cross multiply
    64,850.36x = 89,493.05 × 37,987.11
  4. Step 4: Simplify right side
    64,850.36x = 3,399,582,429.55
  5. Step 5: Solve for x
    x = 3,399,582,429.55/64,850.36
  6. Step 6: Final answer
    x = 52,421.96

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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.