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Finding the Fourth Proportional to 64,858.40, 89,499.20 and 36,571.04

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Solution

The fourth proportional to 64,858.40, 89,499.20 and 36,571.04 is: 50,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,858.40 : 89,499.20 = 36,571.04 : x
  2. Step 2: Convert to fraction form
    64,858.40/89,499.20 = 36,571.04/x
  3. Step 3: Cross multiply
    64,858.40x = 89,499.20 × 36,571.04
  4. Step 4: Simplify right side
    64,858.40x = 3,273,078,823.17
  5. Step 5: Solve for x
    x = 3,273,078,823.17/64,858.40
  6. Step 6: Final answer
    x = 50,464.99

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1.5x scale

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.