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Finding the Fourth Proportional to 64,683.64, 89,230.74 and 37,808.60

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Solution

The fourth proportional to 64,683.64, 89,230.74 and 37,808.60 is: 52,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,683.64 : 89,230.74 = 37,808.60 : x
  2. Step 2: Convert to fraction form
    64,683.64/89,230.74 = 37,808.60/x
  3. Step 3: Cross multiply
    64,683.64x = 89,230.74 × 37,808.60
  4. Step 4: Simplify right side
    64,683.64x = 3,373,689,356.36
  5. Step 5: Solve for x
    x = 3,373,689,356.36/64,683.64
  6. Step 6: Final answer
    x = 52,156.76

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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.