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Finding the Fourth Proportional to 64,634.76, 89,194.91 and 36,340.38

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Solution

The fourth proportional to 64,634.76, 89,194.91 and 36,340.38 is: 50,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,634.76 : 89,194.91 = 36,340.38 : x
  2. Step 2: Convert to fraction form
    64,634.76/89,194.91 = 36,340.38/x
  3. Step 3: Cross multiply
    64,634.76x = 89,194.91 × 36,340.38
  4. Step 4: Simplify right side
    64,634.76x = 3,241,376,741.76
  5. Step 5: Solve for x
    x = 3,241,376,741.76/64,634.76
  6. Step 6: Final answer
    x = 50,149.13

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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.