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Finding the Fourth Proportional to 57,990.07, 79,971.20 and 37,840.51

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Solution

The fourth proportional to 57,990.07, 79,971.20 and 37,840.51 is: 52,183.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,990.07 : 79,971.20 = 37,840.51 : x
  2. Step 2: Convert to fraction form
    57,990.07/79,971.20 = 37,840.51/x
  3. Step 3: Cross multiply
    57,990.07x = 79,971.20 × 37,840.51
  4. Step 4: Simplify right side
    57,990.07x = 3,026,150,804.11
  5. Step 5: Solve for x
    x = 3,026,150,804.11/57,990.07
  6. Step 6: Final answer
    x = 52,183.95

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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.