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Finding the Fourth Proportional to 61,330.71, 84,628.80 and 35,493.69

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Solution

The fourth proportional to 61,330.71, 84,628.80 and 35,493.69 is: 48,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,330.71 : 84,628.80 = 35,493.69 : x
  2. Step 2: Convert to fraction form
    61,330.71/84,628.80 = 35,493.69/x
  3. Step 3: Cross multiply
    61,330.71x = 84,628.80 × 35,493.69
  4. Step 4: Simplify right side
    61,330.71x = 3,003,788,392.27
  5. Step 5: Solve for x
    x = 3,003,788,392.27/61,330.71
  6. Step 6: Final answer
    x = 48,976.91

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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.