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Finding the Fourth Proportional to 88,911.70, 133,403.60 and 38,965.48

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Solution

The fourth proportional to 88,911.70, 133,403.60 and 38,965.48 is: 58,464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,911.70 : 133,403.60 = 38,965.48 : x
  2. Step 2: Convert to fraction form
    88,911.70/133,403.60 = 38,965.48/x
  3. Step 3: Cross multiply
    88,911.70x = 133,403.60 × 38,965.48
  4. Step 4: Simplify right side
    88,911.70x = 5,198,135,307.73
  5. Step 5: Solve for x
    x = 5,198,135,307.73/88,911.70
  6. Step 6: Final answer
    x = 58,464.02

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1.5x scale

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.