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Finding the Fourth Proportional to 37,289.67, 55,921.19 and 12,325.11

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Solution

The fourth proportional to 37,289.67, 55,921.19 and 12,325.11 is: 18,483.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,289.67 : 55,921.19 = 12,325.11 : x
  2. Step 2: Convert to fraction form
    37,289.67/55,921.19 = 12,325.11/x
  3. Step 3: Cross multiply
    37,289.67x = 55,921.19 × 12,325.11
  4. Step 4: Simplify right side
    37,289.67x = 689,234,756.46
  5. Step 5: Solve for x
    x = 689,234,756.46/37,289.67
  6. Step 6: Final answer
    x = 18,483.26

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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.