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Finding the Fourth Proportional to 63,441, 87,508.08 and 40,772.34

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Solution

The fourth proportional to 63,441, 87,508.08 and 40,772.34 is: 56,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,441 : 87,508.08 = 40,772.34 : x
  2. Step 2: Convert to fraction form
    63,441/87,508.08 = 40,772.34/x
  3. Step 3: Cross multiply
    63,441x = 87,508.08 × 40,772.34
  4. Step 4: Simplify right side
    63,441x = 3,567,909,190.51
  5. Step 5: Solve for x
    x = 3,567,909,190.51/63,441
  6. Step 6: Final answer
    x = 56,239.80

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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.