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Finding the Fourth Proportional to 63,428.60, 87,511.74 and 36,567.67

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Solution

The fourth proportional to 63,428.60, 87,511.74 and 36,567.67 is: 50,452.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,428.60 : 87,511.74 = 36,567.67 : x
  2. Step 2: Convert to fraction form
    63,428.60/87,511.74 = 36,567.67/x
  3. Step 3: Cross multiply
    63,428.60x = 87,511.74 × 36,567.67
  4. Step 4: Simplify right side
    63,428.60x = 3,200,100,429.45
  5. Step 5: Solve for x
    x = 3,200,100,429.45/63,428.60
  6. Step 6: Final answer
    x = 50,452.01

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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.