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Finding the Fourth Proportional to 18,793.74, 25,923.24 and 14,307.66

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Solution

The fourth proportional to 18,793.74, 25,923.24 and 14,307.66 is: 19,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.74 : 25,923.24 = 14,307.66 : x
  2. Step 2: Convert to fraction form
    18,793.74/25,923.24 = 14,307.66/x
  3. Step 3: Cross multiply
    18,793.74x = 25,923.24 × 14,307.66
  4. Step 4: Simplify right side
    18,793.74x = 370,900,904.02
  5. Step 5: Solve for x
    x = 370,900,904.02/18,793.74
  6. Step 6: Final answer
    x = 19,735.34

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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.