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Finding the Fourth Proportional to 89,030.80, 133,497.60 and 36,380.80

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Solution

The fourth proportional to 89,030.80, 133,497.60 and 36,380.80 is: 54,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,030.80 : 133,497.60 = 36,380.80 : x
  2. Step 2: Convert to fraction form
    89,030.80/133,497.60 = 36,380.80/x
  3. Step 3: Cross multiply
    89,030.80x = 133,497.60 × 36,380.80
  4. Step 4: Simplify right side
    89,030.80x = 4,856,749,486.08
  5. Step 5: Solve for x
    x = 4,856,749,486.08/89,030.80
  6. Step 6: Final answer
    x = 54,551.34

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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.