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Finding the Fourth Proportional to 14,799.16, 22,198.73 and 7,780.94

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Solution

The fourth proportional to 14,799.16, 22,198.73 and 7,780.94 is: 11,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,799.16 : 22,198.73 = 7,780.94 : x
  2. Step 2: Convert to fraction form
    14,799.16/22,198.73 = 7,780.94/x
  3. Step 3: Cross multiply
    14,799.16x = 22,198.73 × 7,780.94
  4. Step 4: Simplify right side
    14,799.16x = 172,726,922.77
  5. Step 5: Solve for x
    x = 172,726,922.77/14,799.16
  6. Step 6: Final answer
    x = 11,671.40

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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.