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Finding the Fourth Proportional to 64,841.90, 89,489.52 and 36,166.25

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Solution

The fourth proportional to 64,841.90, 89,489.52 and 36,166.25 is: 49,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,841.90 : 89,489.52 = 36,166.25 : x
  2. Step 2: Convert to fraction form
    64,841.90/89,489.52 = 36,166.25/x
  3. Step 3: Cross multiply
    64,841.90x = 89,489.52 × 36,166.25
  4. Step 4: Simplify right side
    64,841.90x = 3,236,500,352.70
  5. Step 5: Solve for x
    x = 3,236,500,352.70/64,841.90
  6. Step 6: Final answer
    x = 49,913.72

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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.