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Finding the Fourth Proportional to 14,981.18, 20,674.01 and 8,266.81

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Solution

The fourth proportional to 14,981.18, 20,674.01 and 8,266.81 is: 11,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.18 : 20,674.01 = 8,266.81 : x
  2. Step 2: Convert to fraction form
    14,981.18/20,674.01 = 8,266.81/x
  3. Step 3: Cross multiply
    14,981.18x = 20,674.01 × 8,266.81
  4. Step 4: Simplify right side
    14,981.18x = 170,907,967.90
  5. Step 5: Solve for x
    x = 170,907,967.90/14,981.18
  6. Step 6: Final answer
    x = 11,408.18

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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.