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Finding the Fourth Proportional to 14,076.87, 19,425.87 and 8,108.60

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Solution

The fourth proportional to 14,076.87, 19,425.87 and 8,108.60 is: 11,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.87 : 19,425.87 = 8,108.60 : x
  2. Step 2: Convert to fraction form
    14,076.87/19,425.87 = 8,108.60/x
  3. Step 3: Cross multiply
    14,076.87x = 19,425.87 × 8,108.60
  4. Step 4: Simplify right side
    14,076.87x = 157,516,512.35
  5. Step 5: Solve for x
    x = 157,516,512.35/14,076.87
  6. Step 6: Final answer
    x = 11,189.74

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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.