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Finding the Fourth Proportional to 37,191.81, 55,788.02 and 13,818.25

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Solution

The fourth proportional to 37,191.81, 55,788.02 and 13,818.25 is: 20,727.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,191.81 : 55,788.02 = 13,818.25 : x
  2. Step 2: Convert to fraction form
    37,191.81/55,788.02 = 13,818.25/x
  3. Step 3: Cross multiply
    37,191.81x = 55,788.02 × 13,818.25
  4. Step 4: Simplify right side
    37,191.81x = 770,892,807.37
  5. Step 5: Solve for x
    x = 770,892,807.37/37,191.81
  6. Step 6: Final answer
    x = 20,727.49

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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.