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Finding the Fourth Proportional to 63,310.98, 87,396.06 and 39,449.45

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Solution

The fourth proportional to 63,310.98, 87,396.06 and 39,449.45 is: 54,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,310.98 : 87,396.06 = 39,449.45 : x
  2. Step 2: Convert to fraction form
    63,310.98/87,396.06 = 39,449.45/x
  3. Step 3: Cross multiply
    63,310.98x = 87,396.06 × 39,449.45
  4. Step 4: Simplify right side
    63,310.98x = 3,447,726,062.19
  5. Step 5: Solve for x
    x = 3,447,726,062.19/63,310.98
  6. Step 6: Final answer
    x = 54,457.00

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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.