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Finding the Fourth Proportional to 64,351.84, 88,805.56 and 39,201.34

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Solution

The fourth proportional to 64,351.84, 88,805.56 and 39,201.34 is: 54,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,351.84 : 88,805.56 = 39,201.34 : x
  2. Step 2: Convert to fraction form
    64,351.84/88,805.56 = 39,201.34/x
  3. Step 3: Cross multiply
    64,351.84x = 88,805.56 × 39,201.34
  4. Step 4: Simplify right side
    64,351.84x = 3,481,296,507.42
  5. Step 5: Solve for x
    x = 3,481,296,507.42/64,351.84
  6. Step 6: Final answer
    x = 54,097.86

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1.5x scale

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.