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Finding the Fourth Proportional to 67,043.40, 100,563.42 and 17,123.64

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Solution

The fourth proportional to 67,043.40, 100,563.42 and 17,123.64 is: 25,685.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,043.40 : 100,563.42 = 17,123.64 : x
  2. Step 2: Convert to fraction form
    67,043.40/100,563.42 = 17,123.64/x
  3. Step 3: Cross multiply
    67,043.40x = 100,563.42 × 17,123.64
  4. Step 4: Simplify right side
    67,043.40x = 1,722,011,801.25
  5. Step 5: Solve for x
    x = 1,722,011,801.25/67,043.40
  6. Step 6: Final answer
    x = 25,685.03

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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.