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Finding the Fourth Proportional to 14,984.01, 20,679.84 and 9,018.90

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Solution

The fourth proportional to 14,984.01, 20,679.84 and 9,018.90 is: 12,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,984.01 : 20,679.84 = 9,018.90 : x
  2. Step 2: Convert to fraction form
    14,984.01/20,679.84 = 9,018.90/x
  3. Step 3: Cross multiply
    14,984.01x = 20,679.84 × 9,018.90
  4. Step 4: Simplify right side
    14,984.01x = 186,509,408.98
  5. Step 5: Solve for x
    x = 186,509,408.98/14,984.01
  6. Step 6: Final answer
    x = 12,447.23

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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.