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Finding the Fourth Proportional to 14,754.84, 20,363.85 and 9,718.26

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Solution

The fourth proportional to 14,754.84, 20,363.85 and 9,718.26 is: 13,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.84 : 20,363.85 = 9,718.26 : x
  2. Step 2: Convert to fraction form
    14,754.84/20,363.85 = 9,718.26/x
  3. Step 3: Cross multiply
    14,754.84x = 20,363.85 × 9,718.26
  4. Step 4: Simplify right side
    14,754.84x = 197,901,188.90
  5. Step 5: Solve for x
    x = 197,901,188.90/14,754.84
  6. Step 6: Final answer
    x = 13,412.63

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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.