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Finding the Fourth Proportional to 63,272, 87,316.88 and 40,954.88

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Solution

The fourth proportional to 63,272, 87,316.88 and 40,954.88 is: 56,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,272 : 87,316.88 = 40,954.88 : x
  2. Step 2: Convert to fraction form
    63,272/87,316.88 = 40,954.88/x
  3. Step 3: Cross multiply
    63,272x = 87,316.88 × 40,954.88
  4. Step 4: Simplify right side
    63,272x = 3,576,052,342.37
  5. Step 5: Solve for x
    x = 3,576,052,342.37/63,272
  6. Step 6: Final answer
    x = 56,518.72

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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.