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Finding the Fourth Proportional to 33,809.80, 50,715.90 and 10,436.20

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Solution

The fourth proportional to 33,809.80, 50,715.90 and 10,436.20 is: 15,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,809.80 : 50,715.90 = 10,436.20 : x
  2. Step 2: Convert to fraction form
    33,809.80/50,715.90 = 10,436.20/x
  3. Step 3: Cross multiply
    33,809.80x = 50,715.90 × 10,436.20
  4. Step 4: Simplify right side
    33,809.80x = 529,281,275.58
  5. Step 5: Solve for x
    x = 529,281,275.58/33,809.80
  6. Step 6: Final answer
    x = 15,654.67

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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.