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Finding the Fourth Proportional to 14,046.57, 21,063.99 and 5,720.97

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Solution

The fourth proportional to 14,046.57, 21,063.99 and 5,720.97 is: 8,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,046.57 : 21,063.99 = 5,720.97 : x
  2. Step 2: Convert to fraction form
    14,046.57/21,063.99 = 5,720.97/x
  3. Step 3: Cross multiply
    14,046.57x = 21,063.99 × 5,720.97
  4. Step 4: Simplify right side
    14,046.57x = 120,506,454.87
  5. Step 5: Solve for x
    x = 120,506,454.87/14,046.57
  6. Step 6: Final answer
    x = 8,579.07

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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.