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Finding the Fourth Proportional to 63,675.48, 87,670.80 and 48,519.48

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Solution

The fourth proportional to 63,675.48, 87,670.80 and 48,519.48 is: 66,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,675.48 : 87,670.80 = 48,519.48 : x
  2. Step 2: Convert to fraction form
    63,675.48/87,670.80 = 48,519.48/x
  3. Step 3: Cross multiply
    63,675.48x = 87,670.80 × 48,519.48
  4. Step 4: Simplify right side
    63,675.48x = 4,253,741,627.18
  5. Step 5: Solve for x
    x = 4,253,741,627.18/63,675.48
  6. Step 6: Final answer
    x = 66,803.45

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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.