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Finding the Fourth Proportional to 37,999.24, 56,949.16 and 20,431.24

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Solution

The fourth proportional to 37,999.24, 56,949.16 and 20,431.24 is: 30,620.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,999.24 : 56,949.16 = 20,431.24 : x
  2. Step 2: Convert to fraction form
    37,999.24/56,949.16 = 20,431.24/x
  3. Step 3: Cross multiply
    37,999.24x = 56,949.16 × 20,431.24
  4. Step 4: Simplify right side
    37,999.24x = 1,163,541,955.76
  5. Step 5: Solve for x
    x = 1,163,541,955.76/37,999.24
  6. Step 6: Final answer
    x = 30,620.14

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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.