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Finding the Fourth Proportional to 28,992.53, 43,505.53 and 15,665.57

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Solution

The fourth proportional to 28,992.53, 43,505.53 and 15,665.57 is: 23,507.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.53 : 43,505.53 = 15,665.57 : x
  2. Step 2: Convert to fraction form
    28,992.53/43,505.53 = 15,665.57/x
  3. Step 3: Cross multiply
    28,992.53x = 43,505.53 × 15,665.57
  4. Step 4: Simplify right side
    28,992.53x = 681,538,668.91
  5. Step 5: Solve for x
    x = 681,538,668.91/28,992.53
  6. Step 6: Final answer
    x = 23,507.39

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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.