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Finding the Fourth Proportional to 63,987.98, 95,992.44 and 28,461.53

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Solution

The fourth proportional to 63,987.98, 95,992.44 and 28,461.53 is: 42,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,987.98 : 95,992.44 = 28,461.53 : x
  2. Step 2: Convert to fraction form
    63,987.98/95,992.44 = 28,461.53/x
  3. Step 3: Cross multiply
    63,987.98x = 95,992.44 × 28,461.53
  4. Step 4: Simplify right side
    63,987.98x = 2,732,091,464.22
  5. Step 5: Solve for x
    x = 2,732,091,464.22/63,987.98
  6. Step 6: Final answer
    x = 42,696.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.