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Finding the Fourth Proportional to 17,739.60, 26,609.40 and 16,443.60

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Solution

The fourth proportional to 17,739.60, 26,609.40 and 16,443.60 is: 24,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.60 : 26,609.40 = 16,443.60 : x
  2. Step 2: Convert to fraction form
    17,739.60/26,609.40 = 16,443.60/x
  3. Step 3: Cross multiply
    17,739.60x = 26,609.40 × 16,443.60
  4. Step 4: Simplify right side
    17,739.60x = 437,554,329.84
  5. Step 5: Solve for x
    x = 437,554,329.84/17,739.60
  6. Step 6: Final answer
    x = 24,665.40

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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.