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Finding the Fourth Proportional to 61,365.66, 91,937.24 and 28,113.54

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Solution

The fourth proportional to 61,365.66, 91,937.24 and 28,113.54 is: 42,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,365.66 : 91,937.24 = 28,113.54 : x
  2. Step 2: Convert to fraction form
    61,365.66/91,937.24 = 28,113.54/x
  3. Step 3: Cross multiply
    61,365.66x = 91,937.24 × 28,113.54
  4. Step 4: Simplify right side
    61,365.66x = 2,584,681,274.23
  5. Step 5: Solve for x
    x = 2,584,681,274.23/61,365.66
  6. Step 6: Final answer
    x = 42,119.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.