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Finding the Fourth Proportional to 37,615.30, 51,914.64 and 21,696.64

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Solution

The fourth proportional to 37,615.30, 51,914.64 and 21,696.64 is: 29,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,615.30 : 51,914.64 = 21,696.64 : x
  2. Step 2: Convert to fraction form
    37,615.30/51,914.64 = 21,696.64/x
  3. Step 3: Cross multiply
    37,615.30x = 51,914.64 × 21,696.64
  4. Step 4: Simplify right side
    37,615.30x = 1,126,373,254.81
  5. Step 5: Solve for x
    x = 1,126,373,254.81/37,615.30
  6. Step 6: Final answer
    x = 29,944.55

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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.