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Finding the Fourth Proportional to 31,848.50, 47,772.86 and 9,662.06

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Solution

The fourth proportional to 31,848.50, 47,772.86 and 9,662.06 is: 14,493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,848.50 : 47,772.86 = 9,662.06 : x
  2. Step 2: Convert to fraction form
    31,848.50/47,772.86 = 9,662.06/x
  3. Step 3: Cross multiply
    31,848.50x = 47,772.86 × 9,662.06
  4. Step 4: Simplify right side
    31,848.50x = 461,584,239.69
  5. Step 5: Solve for x
    x = 461,584,239.69/31,848.50
  6. Step 6: Final answer
    x = 14,493.12

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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.