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Finding the Fourth Proportional to 63,480.60, 87,603.12 and 35,186.76

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Solution

The fourth proportional to 63,480.60, 87,603.12 and 35,186.76 is: 48,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,480.60 : 87,603.12 = 35,186.76 : x
  2. Step 2: Convert to fraction form
    63,480.60/87,603.12 = 35,186.76/x
  3. Step 3: Cross multiply
    63,480.60x = 87,603.12 × 35,186.76
  4. Step 4: Simplify right side
    63,480.60x = 3,082,469,958.69
  5. Step 5: Solve for x
    x = 3,082,469,958.69/63,480.60
  6. Step 6: Final answer
    x = 48,557.67

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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.