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Finding the Fourth Proportional to 71,416.60, 107,124.36 and 21,496.48

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Solution

The fourth proportional to 71,416.60, 107,124.36 and 21,496.48 is: 32,244.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,416.60 : 107,124.36 = 21,496.48 : x
  2. Step 2: Convert to fraction form
    71,416.60/107,124.36 = 21,496.48/x
  3. Step 3: Cross multiply
    71,416.60x = 107,124.36 × 21,496.48
  4. Step 4: Simplify right side
    71,416.60x = 2,302,796,662.25
  5. Step 5: Solve for x
    x = 2,302,796,662.25/71,416.60
  6. Step 6: Final answer
    x = 32,244.56

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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.