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Finding the Fourth Proportional to 18,570, 25,626.60 and 10,186.52

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Solution

The fourth proportional to 18,570, 25,626.60 and 10,186.52 is: 14,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570 : 25,626.60 = 10,186.52 : x
  2. Step 2: Convert to fraction form
    18,570/25,626.60 = 10,186.52/x
  3. Step 3: Cross multiply
    18,570x = 25,626.60 × 10,186.52
  4. Step 4: Simplify right side
    18,570x = 261,045,873.43
  5. Step 5: Solve for x
    x = 261,045,873.43/18,570
  6. Step 6: Final answer
    x = 14,057.40

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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.