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Finding the Fourth Proportional to 52,881.73, 72,951.63 and 31,656.89

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Solution

The fourth proportional to 52,881.73, 72,951.63 and 31,656.89 is: 43,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,881.73 : 72,951.63 = 31,656.89 : x
  2. Step 2: Convert to fraction form
    52,881.73/72,951.63 = 31,656.89/x
  3. Step 3: Cross multiply
    52,881.73x = 72,951.63 × 31,656.89
  4. Step 4: Simplify right side
    52,881.73x = 2,309,421,726.23
  5. Step 5: Solve for x
    x = 2,309,421,726.23/52,881.73
  6. Step 6: Final answer
    x = 43,671.45

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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.