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Finding the Fourth Proportional to 64,800.30, 89,424.41 and 36,505.98

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Solution

The fourth proportional to 64,800.30, 89,424.41 and 36,505.98 is: 50,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,800.30 : 89,424.41 = 36,505.98 : x
  2. Step 2: Convert to fraction form
    64,800.30/89,424.41 = 36,505.98/x
  3. Step 3: Cross multiply
    64,800.30x = 89,424.41 × 36,505.98
  4. Step 4: Simplify right side
    64,800.30x = 3,264,525,722.97
  5. Step 5: Solve for x
    x = 3,264,525,722.97/64,800.30
  6. Step 6: Final answer
    x = 50,378.25

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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.