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Finding the Fourth Proportional to 64,652.02, 89,219.20 and 36,357.10

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Solution

The fourth proportional to 64,652.02, 89,219.20 and 36,357.10 is: 50,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,652.02 : 89,219.20 = 36,357.10 : x
  2. Step 2: Convert to fraction form
    64,652.02/89,219.20 = 36,357.10/x
  3. Step 3: Cross multiply
    64,652.02x = 89,219.20 × 36,357.10
  4. Step 4: Simplify right side
    64,652.02x = 3,243,751,376.32
  5. Step 5: Solve for x
    x = 3,243,751,376.32/64,652.02
  6. Step 6: Final answer
    x = 50,172.47

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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.