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Finding the Fourth Proportional to 62,193.96, 85,627.80 and 55,355.40

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Solution

The fourth proportional to 62,193.96, 85,627.80 and 55,355.40 is: 76,212.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,193.96 : 85,627.80 = 55,355.40 : x
  2. Step 2: Convert to fraction form
    62,193.96/85,627.80 = 55,355.40/x
  3. Step 3: Cross multiply
    62,193.96x = 85,627.80 × 55,355.40
  4. Step 4: Simplify right side
    62,193.96x = 4,739,961,120.12
  5. Step 5: Solve for x
    x = 4,739,961,120.12/62,193.96
  6. Step 6: Final answer
    x = 76,212.56

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1.5x scale

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.