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Finding the Fourth Proportional to 64,652.44, 89,232.68 and 40,464.68

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Solution

The fourth proportional to 64,652.44, 89,232.68 and 40,464.68 is: 55,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,652.44 : 89,232.68 = 40,464.68 : x
  2. Step 2: Convert to fraction form
    64,652.44/89,232.68 = 40,464.68/x
  3. Step 3: Cross multiply
    64,652.44x = 89,232.68 × 40,464.68
  4. Step 4: Simplify right side
    64,652.44x = 3,610,771,841.74
  5. Step 5: Solve for x
    x = 3,610,771,841.74/64,652.44
  6. Step 6: Final answer
    x = 55,848.96

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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.