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Finding the Fourth Proportional to 66,614.76, 91,929.59 and 36,401.36

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Solution

The fourth proportional to 66,614.76, 91,929.59 and 36,401.36 is: 50,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,614.76 : 91,929.59 = 36,401.36 : x
  2. Step 2: Convert to fraction form
    66,614.76/91,929.59 = 36,401.36/x
  3. Step 3: Cross multiply
    66,614.76x = 91,929.59 × 36,401.36
  4. Step 4: Simplify right side
    66,614.76x = 3,346,361,458.59
  5. Step 5: Solve for x
    x = 3,346,361,458.59/66,614.76
  6. Step 6: Final answer
    x = 50,234.53

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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.