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Finding the Fourth Proportional to 64,991.99, 97,491.44 and 20,622.21

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Solution

The fourth proportional to 64,991.99, 97,491.44 and 20,622.21 is: 30,934.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,991.99 : 97,491.44 = 20,622.21 : x
  2. Step 2: Convert to fraction form
    64,991.99/97,491.44 = 20,622.21/x
  3. Step 3: Cross multiply
    64,991.99x = 97,491.44 × 20,622.21
  4. Step 4: Simplify right side
    64,991.99x = 2,010,488,845.77
  5. Step 5: Solve for x
    x = 2,010,488,845.77/64,991.99
  6. Step 6: Final answer
    x = 30,934.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.