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Finding the Fourth Proportional to 64,919.88, 89,592.14 and 36,625.50

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Solution

The fourth proportional to 64,919.88, 89,592.14 and 36,625.50 is: 50,544.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,919.88 : 89,592.14 = 36,625.50 : x
  2. Step 2: Convert to fraction form
    64,919.88/89,592.14 = 36,625.50/x
  3. Step 3: Cross multiply
    64,919.88x = 89,592.14 × 36,625.50
  4. Step 4: Simplify right side
    64,919.88x = 3,281,357,015.13
  5. Step 5: Solve for x
    x = 3,281,357,015.13/64,919.88
  6. Step 6: Final answer
    x = 50,544.72

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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.