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Finding the Fourth Proportional to 64,125.88, 88,505.14 and 38,286.12

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Solution

The fourth proportional to 64,125.88, 88,505.14 and 38,286.12 is: 52,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,125.88 : 88,505.14 = 38,286.12 : x
  2. Step 2: Convert to fraction form
    64,125.88/88,505.14 = 38,286.12/x
  3. Step 3: Cross multiply
    64,125.88x = 88,505.14 × 38,286.12
  4. Step 4: Simplify right side
    64,125.88x = 3,388,518,410.66
  5. Step 5: Solve for x
    x = 3,388,518,410.66/64,125.88
  6. Step 6: Final answer
    x = 52,841.67

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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.