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Finding the Fourth Proportional to 50,903.76, 70,244.02 and 30,748.73

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Solution

The fourth proportional to 50,903.76, 70,244.02 and 30,748.73 is: 42,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,903.76 : 70,244.02 = 30,748.73 : x
  2. Step 2: Convert to fraction form
    50,903.76/70,244.02 = 30,748.73/x
  3. Step 3: Cross multiply
    50,903.76x = 70,244.02 × 30,748.73
  4. Step 4: Simplify right side
    50,903.76x = 2,159,914,405.09
  5. Step 5: Solve for x
    x = 2,159,914,405.09/50,903.76
  6. Step 6: Final answer
    x = 42,431.33

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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.