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Finding the Fourth Proportional to 57,808.76, 79,752.48 and 45,824

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Solution

The fourth proportional to 57,808.76, 79,752.48 and 45,824 is: 63,218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,808.76 : 79,752.48 = 45,824 : x
  2. Step 2: Convert to fraction form
    57,808.76/79,752.48 = 45,824/x
  3. Step 3: Cross multiply
    57,808.76x = 79,752.48 × 45,824
  4. Step 4: Simplify right side
    57,808.76x = 3,654,577,643.52
  5. Step 5: Solve for x
    x = 3,654,577,643.52/57,808.76
  6. Step 6: Final answer
    x = 63,218.41

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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.