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Finding the Fourth Proportional to 10,728.41, 14,803.26 and 6,754.82

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Solution

The fourth proportional to 10,728.41, 14,803.26 and 6,754.82 is: 9,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.41 : 14,803.26 = 6,754.82 : x
  2. Step 2: Convert to fraction form
    10,728.41/14,803.26 = 6,754.82/x
  3. Step 3: Cross multiply
    10,728.41x = 14,803.26 × 6,754.82
  4. Step 4: Simplify right side
    10,728.41x = 99,993,356.71
  5. Step 5: Solve for x
    x = 99,993,356.71/10,728.41
  6. Step 6: Final answer
    x = 9,320.43

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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.