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Finding the Fourth Proportional to 61,518.51, 84,889.47 and 34,665.79

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Solution

The fourth proportional to 61,518.51, 84,889.47 and 34,665.79 is: 47,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,518.51 : 84,889.47 = 34,665.79 : x
  2. Step 2: Convert to fraction form
    61,518.51/84,889.47 = 34,665.79/x
  3. Step 3: Cross multiply
    61,518.51x = 84,889.47 × 34,665.79
  4. Step 4: Simplify right side
    61,518.51x = 2,942,760,366.90
  5. Step 5: Solve for x
    x = 2,942,760,366.90/61,518.51
  6. Step 6: Final answer
    x = 47,835.37

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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.