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Finding the Fourth Proportional to 18,976.72, 28,527.35 and 17,606.60

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Solution

The fourth proportional to 18,976.72, 28,527.35 and 17,606.60 is: 26,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.72 : 28,527.35 = 17,606.60 : x
  2. Step 2: Convert to fraction form
    18,976.72/28,527.35 = 17,606.60/x
  3. Step 3: Cross multiply
    18,976.72x = 28,527.35 × 17,606.60
  4. Step 4: Simplify right side
    18,976.72x = 502,269,552.48
  5. Step 5: Solve for x
    x = 502,269,552.48/18,976.72
  6. Step 6: Final answer
    x = 26,467.68

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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.