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Finding the Fourth Proportional to 18,160.56, 25,059.60 and 10,203.60

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Solution

The fourth proportional to 18,160.56, 25,059.60 and 10,203.60 is: 14,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.56 : 25,059.60 = 10,203.60 : x
  2. Step 2: Convert to fraction form
    18,160.56/25,059.60 = 10,203.60/x
  3. Step 3: Cross multiply
    18,160.56x = 25,059.60 × 10,203.60
  4. Step 4: Simplify right side
    18,160.56x = 255,698,134.56
  5. Step 5: Solve for x
    x = 255,698,134.56/18,160.56
  6. Step 6: Final answer
    x = 14,079.86

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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.