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Finding the Fourth Proportional to 65,994.32, 99,043.32 and 36,432.56

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Solution

The fourth proportional to 65,994.32, 99,043.32 and 36,432.56 is: 54,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,994.32 : 99,043.32 = 36,432.56 : x
  2. Step 2: Convert to fraction form
    65,994.32/99,043.32 = 36,432.56/x
  3. Step 3: Cross multiply
    65,994.32x = 99,043.32 × 36,432.56
  4. Step 4: Simplify right side
    65,994.32x = 3,608,401,698.50
  5. Step 5: Solve for x
    x = 3,608,401,698.50/65,994.32
  6. Step 6: Final answer
    x = 54,677.46

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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.