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Finding the Fourth Proportional to 15,765.90, 23,648.85 and 14,793.90

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Solution

The fourth proportional to 15,765.90, 23,648.85 and 14,793.90 is: 22,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.90 : 23,648.85 = 14,793.90 : x
  2. Step 2: Convert to fraction form
    15,765.90/23,648.85 = 14,793.90/x
  3. Step 3: Cross multiply
    15,765.90x = 23,648.85 × 14,793.90
  4. Step 4: Simplify right side
    15,765.90x = 349,858,722.02
  5. Step 5: Solve for x
    x = 349,858,722.02/15,765.90
  6. Step 6: Final answer
    x = 22,190.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.