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Finding the Fourth Proportional to 65,205.63, 89,962.65 and 36,520.92

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Solution

The fourth proportional to 65,205.63, 89,962.65 and 36,520.92 is: 50,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,205.63 : 89,962.65 = 36,520.92 : x
  2. Step 2: Convert to fraction form
    65,205.63/89,962.65 = 36,520.92/x
  3. Step 3: Cross multiply
    65,205.63x = 89,962.65 × 36,520.92
  4. Step 4: Simplify right side
    65,205.63x = 3,285,518,743.64
  5. Step 5: Solve for x
    x = 3,285,518,743.64/65,205.63
  6. Step 6: Final answer
    x = 50,387.04

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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.