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Finding the Fourth Proportional to 14,609.58, 21,899.79 and 5,712.71

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Solution

The fourth proportional to 14,609.58, 21,899.79 and 5,712.71 is: 8,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.58 : 21,899.79 = 5,712.71 : x
  2. Step 2: Convert to fraction form
    14,609.58/21,899.79 = 5,712.71/x
  3. Step 3: Cross multiply
    14,609.58x = 21,899.79 × 5,712.71
  4. Step 4: Simplify right side
    14,609.58x = 125,107,149.33
  5. Step 5: Solve for x
    x = 125,107,149.33/14,609.58
  6. Step 6: Final answer
    x = 8,563.36

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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.