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Finding the Fourth Proportional to 18,647.84, 25,733.52 and 10,264.28

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Solution

The fourth proportional to 18,647.84, 25,733.52 and 10,264.28 is: 14,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.84 : 25,733.52 = 10,264.28 : x
  2. Step 2: Convert to fraction form
    18,647.84/25,733.52 = 10,264.28/x
  3. Step 3: Cross multiply
    18,647.84x = 25,733.52 × 10,264.28
  4. Step 4: Simplify right side
    18,647.84x = 264,136,054.67
  5. Step 5: Solve for x
    x = 264,136,054.67/18,647.84
  6. Step 6: Final answer
    x = 14,164.43

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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.