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Finding the Fourth Proportional to 57,290.51, 79,059.71 and 31,795.39

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Solution

The fourth proportional to 57,290.51, 79,059.71 and 31,795.39 is: 43,876.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,290.51 : 79,059.71 = 31,795.39 : x
  2. Step 2: Convert to fraction form
    57,290.51/79,059.71 = 31,795.39/x
  3. Step 3: Cross multiply
    57,290.51x = 79,059.71 × 31,795.39
  4. Step 4: Simplify right side
    57,290.51x = 2,513,734,153.76
  5. Step 5: Solve for x
    x = 2,513,734,153.76/57,290.51
  6. Step 6: Final answer
    x = 43,876.98

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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.