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Finding the Fourth Proportional to 64,305.74, 88,615.54 and 49,215.44

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Solution

The fourth proportional to 64,305.74, 88,615.54 and 49,215.44 is: 67,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,305.74 : 88,615.54 = 49,215.44 : x
  2. Step 2: Convert to fraction form
    64,305.74/88,615.54 = 49,215.44/x
  3. Step 3: Cross multiply
    64,305.74x = 88,615.54 × 49,215.44
  4. Step 4: Simplify right side
    64,305.74x = 4,361,252,791.94
  5. Step 5: Solve for x
    x = 4,361,252,791.94/64,305.74
  6. Step 6: Final answer
    x = 67,820.58

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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.