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Finding the Fourth Proportional to 63,490.98, 87,621.48 and 35,196.66

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Solution

The fourth proportional to 63,490.98, 87,621.48 and 35,196.66 is: 48,573.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,490.98 : 87,621.48 = 35,196.66 : x
  2. Step 2: Convert to fraction form
    63,490.98/87,621.48 = 35,196.66/x
  3. Step 3: Cross multiply
    63,490.98x = 87,621.48 × 35,196.66
  4. Step 4: Simplify right side
    63,490.98x = 3,083,983,440.26
  5. Step 5: Solve for x
    x = 3,083,983,440.26/63,490.98
  6. Step 6: Final answer
    x = 48,573.57

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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.