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Finding the Fourth Proportional to 57,296.84, 79,070.48 and 31,804.84

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Solution

The fourth proportional to 57,296.84, 79,070.48 and 31,804.84 is: 43,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,296.84 : 79,070.48 = 31,804.84 : x
  2. Step 2: Convert to fraction form
    57,296.84/79,070.48 = 31,804.84/x
  3. Step 3: Cross multiply
    57,296.84x = 79,070.48 × 31,804.84
  4. Step 4: Simplify right side
    57,296.84x = 2,514,823,965.12
  5. Step 5: Solve for x
    x = 2,514,823,965.12/57,296.84
  6. Step 6: Final answer
    x = 43,891.15

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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.