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Finding the Fourth Proportional to 18,959.56, 26,173.54 and 14,700.96

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Solution

The fourth proportional to 18,959.56, 26,173.54 and 14,700.96 is: 20,294.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.56 : 26,173.54 = 14,700.96 : x
  2. Step 2: Convert to fraction form
    18,959.56/26,173.54 = 14,700.96/x
  3. Step 3: Cross multiply
    18,959.56x = 26,173.54 × 14,700.96
  4. Step 4: Simplify right side
    18,959.56x = 384,776,164.60
  5. Step 5: Solve for x
    x = 384,776,164.60/18,959.56
  6. Step 6: Final answer
    x = 20,294.57

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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.