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Finding the Fourth Proportional to 64,290.75, 88,721.14 and 35,996.44

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Solution

The fourth proportional to 64,290.75, 88,721.14 and 35,996.44 is: 49,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,290.75 : 88,721.14 = 35,996.44 : x
  2. Step 2: Convert to fraction form
    64,290.75/88,721.14 = 35,996.44/x
  3. Step 3: Cross multiply
    64,290.75x = 88,721.14 × 35,996.44
  4. Step 4: Simplify right side
    64,290.75x = 3,193,645,012.76
  5. Step 5: Solve for x
    x = 3,193,645,012.76/64,290.75
  6. Step 6: Final answer
    x = 49,675.03

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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.