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Finding the Fourth Proportional to 64,427.59, 88,909 and 36,132.67

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Solution

The fourth proportional to 64,427.59, 88,909 and 36,132.67 is: 49,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,427.59 : 88,909 = 36,132.67 : x
  2. Step 2: Convert to fraction form
    64,427.59/88,909 = 36,132.67/x
  3. Step 3: Cross multiply
    64,427.59x = 88,909 × 36,132.67
  4. Step 4: Simplify right side
    64,427.59x = 3,212,519,557.03
  5. Step 5: Solve for x
    x = 3,212,519,557.03/64,427.59
  6. Step 6: Final answer
    x = 49,862.48

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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.