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Finding the Fourth Proportional to 14,624.70, 20,182.05 and 7,910.27

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Solution

The fourth proportional to 14,624.70, 20,182.05 and 7,910.27 is: 10,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,624.70 : 20,182.05 = 7,910.27 : x
  2. Step 2: Convert to fraction form
    14,624.70/20,182.05 = 7,910.27/x
  3. Step 3: Cross multiply
    14,624.70x = 20,182.05 × 7,910.27
  4. Step 4: Simplify right side
    14,624.70x = 159,645,363.74
  5. Step 5: Solve for x
    x = 159,645,363.74/14,624.70
  6. Step 6: Final answer
    x = 10,916.15

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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.