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Finding the Fourth Proportional to 14,824.99, 20,460.45 and 8,453.89

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Solution

The fourth proportional to 14,824.99, 20,460.45 and 8,453.89 is: 11,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,824.99 : 20,460.45 = 8,453.89 : x
  2. Step 2: Convert to fraction form
    14,824.99/20,460.45 = 8,453.89/x
  3. Step 3: Cross multiply
    14,824.99x = 20,460.45 × 8,453.89
  4. Step 4: Simplify right side
    14,824.99x = 172,970,393.65
  5. Step 5: Solve for x
    x = 172,970,393.65/14,824.99
  6. Step 6: Final answer
    x = 11,667.49

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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.