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Finding the Fourth Proportional to 36,912.30, 55,368.45 and 36,693.60

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Solution

The fourth proportional to 36,912.30, 55,368.45 and 36,693.60 is: 55,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.30 : 55,368.45 = 36,693.60 : x
  2. Step 2: Convert to fraction form
    36,912.30/55,368.45 = 36,693.60/x
  3. Step 3: Cross multiply
    36,912.30x = 55,368.45 × 36,693.60
  4. Step 4: Simplify right side
    36,912.30x = 2,031,667,756.92
  5. Step 5: Solve for x
    x = 2,031,667,756.92/36,912.30
  6. Step 6: Final answer
    x = 55,040.40

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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.