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Finding the Fourth Proportional to 14,679.42, 20,254.43 and 8,713.08

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Solution

The fourth proportional to 14,679.42, 20,254.43 and 8,713.08 is: 12,022.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.42 : 20,254.43 = 8,713.08 : x
  2. Step 2: Convert to fraction form
    14,679.42/20,254.43 = 8,713.08/x
  3. Step 3: Cross multiply
    14,679.42x = 20,254.43 × 8,713.08
  4. Step 4: Simplify right side
    14,679.42x = 176,478,425.38
  5. Step 5: Solve for x
    x = 176,478,425.38/14,679.42
  6. Step 6: Final answer
    x = 12,022.17

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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.