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Finding the Fourth Proportional to 64,841.40, 89,488.83 and 36,165.75

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Solution

The fourth proportional to 64,841.40, 89,488.83 and 36,165.75 is: 49,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,841.40 : 89,488.83 = 36,165.75 : x
  2. Step 2: Convert to fraction form
    64,841.40/89,488.83 = 36,165.75/x
  3. Step 3: Cross multiply
    64,841.40x = 89,488.83 × 36,165.75
  4. Step 4: Simplify right side
    64,841.40x = 3,236,430,653.57
  5. Step 5: Solve for x
    x = 3,236,430,653.57/64,841.40
  6. Step 6: Final answer
    x = 49,913.03

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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.