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Finding the Fourth Proportional to 15,242.73, 21,034.48 and 8,528.48

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Solution

The fourth proportional to 15,242.73, 21,034.48 and 8,528.48 is: 11,769.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.73 : 21,034.48 = 8,528.48 : x
  2. Step 2: Convert to fraction form
    15,242.73/21,034.48 = 8,528.48/x
  3. Step 3: Cross multiply
    15,242.73x = 21,034.48 × 8,528.48
  4. Step 4: Simplify right side
    15,242.73x = 179,392,141.99
  5. Step 5: Solve for x
    x = 179,392,141.99/15,242.73
  6. Step 6: Final answer
    x = 11,769.03

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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.