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Finding the Fourth Proportional to 57,820.88, 79,806.16 and 37,642.64

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Solution

The fourth proportional to 57,820.88, 79,806.16 and 37,642.64 is: 51,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,820.88 : 79,806.16 = 37,642.64 : x
  2. Step 2: Convert to fraction form
    57,820.88/79,806.16 = 37,642.64/x
  3. Step 3: Cross multiply
    57,820.88x = 79,806.16 × 37,642.64
  4. Step 4: Simplify right side
    57,820.88x = 3,004,114,550.66
  5. Step 5: Solve for x
    x = 3,004,114,550.66/57,820.88
  6. Step 6: Final answer
    x = 51,955.53

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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.