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Finding the Fourth Proportional to 14,679.42, 20,254.44 and 8,713.06

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Solution

The fourth proportional to 14,679.42, 20,254.44 and 8,713.06 is: 12,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.42 : 20,254.44 = 8,713.06 : x
  2. Step 2: Convert to fraction form
    14,679.42/20,254.44 = 8,713.06/x
  3. Step 3: Cross multiply
    14,679.42x = 20,254.44 × 8,713.06
  4. Step 4: Simplify right side
    14,679.42x = 176,478,150.99
  5. Step 5: Solve for x
    x = 176,478,150.99/14,679.42
  6. Step 6: Final answer
    x = 12,022.15

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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.