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Finding the Fourth Proportional to 57,770.60, 86,684.70 and 32,829.80

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Solution

The fourth proportional to 57,770.60, 86,684.70 and 32,829.80 is: 49,261.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,770.60 : 86,684.70 = 32,829.80 : x
  2. Step 2: Convert to fraction form
    57,770.60/86,684.70 = 32,829.80/x
  3. Step 3: Cross multiply
    57,770.60x = 86,684.70 × 32,829.80
  4. Step 4: Simplify right side
    57,770.60x = 2,845,841,364.06
  5. Step 5: Solve for x
    x = 2,845,841,364.06/57,770.60
  6. Step 6: Final answer
    x = 49,261.07

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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.