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Finding the Fourth Proportional to 18,609.57, 25,707.33 and 16,928.01

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Solution

The fourth proportional to 18,609.57, 25,707.33 and 16,928.01 is: 23,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.57 : 25,707.33 = 16,928.01 : x
  2. Step 2: Convert to fraction form
    18,609.57/25,707.33 = 16,928.01/x
  3. Step 3: Cross multiply
    18,609.57x = 25,707.33 × 16,928.01
  4. Step 4: Simplify right side
    18,609.57x = 435,173,939.31
  5. Step 5: Solve for x
    x = 435,173,939.31/18,609.57
  6. Step 6: Final answer
    x = 23,384.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.