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Finding the Fourth Proportional to 57,438.42, 79,259.79 and 33,235.20

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Solution

The fourth proportional to 57,438.42, 79,259.79 and 33,235.20 is: 45,861.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,438.42 : 79,259.79 = 33,235.20 : x
  2. Step 2: Convert to fraction form
    57,438.42/79,259.79 = 33,235.20/x
  3. Step 3: Cross multiply
    57,438.42x = 79,259.79 × 33,235.20
  4. Step 4: Simplify right side
    57,438.42x = 2,634,214,972.61
  5. Step 5: Solve for x
    x = 2,634,214,972.61/57,438.42
  6. Step 6: Final answer
    x = 45,861.55

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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.