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Finding the Fourth Proportional to 32,667.76, 49,031.70 and 20,212.11

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Solution

The fourth proportional to 32,667.76, 49,031.70 and 20,212.11 is: 30,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,667.76 : 49,031.70 = 20,212.11 : x
  2. Step 2: Convert to fraction form
    32,667.76/49,031.70 = 20,212.11/x
  3. Step 3: Cross multiply
    32,667.76x = 49,031.70 × 20,212.11
  4. Step 4: Simplify right side
    32,667.76x = 991,034,070.73
  5. Step 5: Solve for x
    x = 991,034,070.73/32,667.76
  6. Step 6: Final answer
    x = 30,336.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.