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Finding the Fourth Proportional to 14,043.65, 21,065.11 and 5,723.63

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Solution

The fourth proportional to 14,043.65, 21,065.11 and 5,723.63 is: 8,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.65 : 21,065.11 = 5,723.63 : x
  2. Step 2: Convert to fraction form
    14,043.65/21,065.11 = 5,723.63/x
  3. Step 3: Cross multiply
    14,043.65x = 21,065.11 × 5,723.63
  4. Step 4: Simplify right side
    14,043.65x = 120,568,887.10
  5. Step 5: Solve for x
    x = 120,568,887.10/14,043.65
  6. Step 6: Final answer
    x = 8,585.30

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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.