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Finding the Fourth Proportional to 63,334.72, 95,011.80 and 21,772

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Solution

The fourth proportional to 63,334.72, 95,011.80 and 21,772 is: 32,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,334.72 : 95,011.80 = 21,772 : x
  2. Step 2: Convert to fraction form
    63,334.72/95,011.80 = 21,772/x
  3. Step 3: Cross multiply
    63,334.72x = 95,011.80 × 21,772
  4. Step 4: Simplify right side
    63,334.72x = 2,068,596,909.60
  5. Step 5: Solve for x
    x = 2,068,596,909.60/63,334.72
  6. Step 6: Final answer
    x = 32,661.34

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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.