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Finding the Fourth Proportional to 70,817.44, 106,224.24 and 21,569.44

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Solution

The fourth proportional to 70,817.44, 106,224.24 and 21,569.44 is: 32,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,817.44 : 106,224.24 = 21,569.44 : x
  2. Step 2: Convert to fraction form
    70,817.44/106,224.24 = 21,569.44/x
  3. Step 3: Cross multiply
    70,817.44x = 106,224.24 × 21,569.44
  4. Step 4: Simplify right side
    70,817.44x = 2,291,197,371.23
  5. Step 5: Solve for x
    x = 2,291,197,371.23/70,817.44
  6. Step 6: Final answer
    x = 32,353.58

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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.