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Finding the Fourth Proportional to 65,073.60, 89,794.12 and 36,779.20

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Solution

The fourth proportional to 65,073.60, 89,794.12 and 36,779.20 is: 50,751.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,073.60 : 89,794.12 = 36,779.20 : x
  2. Step 2: Convert to fraction form
    65,073.60/89,794.12 = 36,779.20/x
  3. Step 3: Cross multiply
    65,073.60x = 89,794.12 × 36,779.20
  4. Step 4: Simplify right side
    65,073.60x = 3,302,555,898.30
  5. Step 5: Solve for x
    x = 3,302,555,898.30/65,073.60
  6. Step 6: Final answer
    x = 50,751.09

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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.