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Finding the Fourth Proportional to 64,858.21, 89,508.44 and 36,565.72

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Solution

The fourth proportional to 64,858.21, 89,508.44 and 36,565.72 is: 50,463.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,858.21 : 89,508.44 = 36,565.72 : x
  2. Step 2: Convert to fraction form
    64,858.21/89,508.44 = 36,565.72/x
  3. Step 3: Cross multiply
    64,858.21x = 89,508.44 × 36,565.72
  4. Step 4: Simplify right side
    64,858.21x = 3,272,940,422.32
  5. Step 5: Solve for x
    x = 3,272,940,422.32/64,858.21
  6. Step 6: Final answer
    x = 50,463.01

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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.