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Finding the Fourth Proportional to 14,793.40, 22,146.90 and 13,238.20

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Solution

The fourth proportional to 14,793.40, 22,146.90 and 13,238.20 is: 19,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,793.40 : 22,146.90 = 13,238.20 : x
  2. Step 2: Convert to fraction form
    14,793.40/22,146.90 = 13,238.20/x
  3. Step 3: Cross multiply
    14,793.40x = 22,146.90 × 13,238.20
  4. Step 4: Simplify right side
    14,793.40x = 293,185,091.58
  5. Step 5: Solve for x
    x = 293,185,091.58/14,793.40
  6. Step 6: Final answer
    x = 19,818.64

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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.