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Finding the Fourth Proportional to 11,141.76, 16,701.12 and 4,820.70

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Solution

The fourth proportional to 11,141.76, 16,701.12 and 4,820.70 is: 7,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.76 : 16,701.12 = 4,820.70 : x
  2. Step 2: Convert to fraction form
    11,141.76/16,701.12 = 4,820.70/x
  3. Step 3: Cross multiply
    11,141.76x = 16,701.12 × 4,820.70
  4. Step 4: Simplify right side
    11,141.76x = 80,511,089.18
  5. Step 5: Solve for x
    x = 80,511,089.18/11,141.76
  6. Step 6: Final answer
    x = 7,226.07

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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.