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Finding the Fourth Proportional to 10,653.15, 15,965.13 and 6,760.29

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Solution

The fourth proportional to 10,653.15, 15,965.13 and 6,760.29 is: 10,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.15 : 15,965.13 = 6,760.29 : x
  2. Step 2: Convert to fraction form
    10,653.15/15,965.13 = 6,760.29/x
  3. Step 3: Cross multiply
    10,653.15x = 15,965.13 × 6,760.29
  4. Step 4: Simplify right side
    10,653.15x = 107,928,908.69
  5. Step 5: Solve for x
    x = 107,928,908.69/10,653.15
  6. Step 6: Final answer
    x = 10,131.17

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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.