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Finding the Fourth Proportional to 15,754.70, 21,741.99 and 9,041.56

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Solution

The fourth proportional to 15,754.70, 21,741.99 and 9,041.56 is: 12,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,754.70 : 21,741.99 = 9,041.56 : x
  2. Step 2: Convert to fraction form
    15,754.70/21,741.99 = 9,041.56/x
  3. Step 3: Cross multiply
    15,754.70x = 21,741.99 × 9,041.56
  4. Step 4: Simplify right side
    15,754.70x = 196,581,418.84
  5. Step 5: Solve for x
    x = 196,581,418.84/15,754.70
  6. Step 6: Final answer
    x = 12,477.63

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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.