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Finding the Fourth Proportional to 61,478.80, 84,841.68 and 37,600.36

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Solution

The fourth proportional to 61,478.80, 84,841.68 and 37,600.36 is: 51,889.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,478.80 : 84,841.68 = 37,600.36 : x
  2. Step 2: Convert to fraction form
    61,478.80/84,841.68 = 37,600.36/x
  3. Step 3: Cross multiply
    61,478.80x = 84,841.68 × 37,600.36
  4. Step 4: Simplify right side
    61,478.80x = 3,190,077,711.00
  5. Step 5: Solve for x
    x = 3,190,077,711.00/61,478.80
  6. Step 6: Final answer
    x = 51,889.07

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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.