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Finding the Fourth Proportional to 57,353.81, 79,157.66 and 33,155.56

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Solution

The fourth proportional to 57,353.81, 79,157.66 and 33,155.56 is: 45,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,353.81 : 79,157.66 = 33,155.56 : x
  2. Step 2: Convert to fraction form
    57,353.81/79,157.66 = 33,155.56/x
  3. Step 3: Cross multiply
    57,353.81x = 79,157.66 × 33,155.56
  4. Step 4: Simplify right side
    57,353.81x = 2,624,516,478.76
  5. Step 5: Solve for x
    x = 2,624,516,478.76/57,353.81
  6. Step 6: Final answer
    x = 45,760.11

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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.