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Finding the Fourth Proportional to 33,159.60, 49,748.20 and 14,431.60

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Solution

The fourth proportional to 33,159.60, 49,748.20 and 14,431.60 is: 21,651.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,159.60 : 49,748.20 = 14,431.60 : x
  2. Step 2: Convert to fraction form
    33,159.60/49,748.20 = 14,431.60/x
  3. Step 3: Cross multiply
    33,159.60x = 49,748.20 × 14,431.60
  4. Step 4: Simplify right side
    33,159.60x = 717,946,123.12
  5. Step 5: Solve for x
    x = 717,946,123.12/33,159.60
  6. Step 6: Final answer
    x = 21,651.23

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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.