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Finding the Fourth Proportional to 49,472.75, 74,209.13 and 21,770.75

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Solution

The fourth proportional to 49,472.75, 74,209.13 and 21,770.75 is: 32,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,472.75 : 74,209.13 = 21,770.75 : x
  2. Step 2: Convert to fraction form
    49,472.75/74,209.13 = 21,770.75/x
  3. Step 3: Cross multiply
    49,472.75x = 74,209.13 × 21,770.75
  4. Step 4: Simplify right side
    49,472.75x = 1,615,588,416.95
  5. Step 5: Solve for x
    x = 1,615,588,416.95/49,472.75
  6. Step 6: Final answer
    x = 32,656.13

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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.