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Finding the Fourth Proportional to 14,793.30, 20,423.14 and 9,755.64

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Solution

The fourth proportional to 14,793.30, 20,423.14 and 9,755.64 is: 13,468.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,793.30 : 20,423.14 = 9,755.64 : x
  2. Step 2: Convert to fraction form
    14,793.30/20,423.14 = 9,755.64/x
  3. Step 3: Cross multiply
    14,793.30x = 20,423.14 × 9,755.64
  4. Step 4: Simplify right side
    14,793.30x = 199,240,777.12
  5. Step 5: Solve for x
    x = 199,240,777.12/14,793.30
  6. Step 6: Final answer
    x = 13,468.31

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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.