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Finding the Fourth Proportional to 19,700.70, 26,181.20 and 19,700.70

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Solution

The fourth proportional to 19,700.70, 26,181.20 and 19,700.70 is: 26,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700.70 : 26,181.20 = 19,700.70 : x
  2. Step 2: Convert to fraction form
    19,700.70/26,181.20 = 19,700.70/x
  3. Step 3: Cross multiply
    19,700.70x = 26,181.20 × 19,700.70
  4. Step 4: Simplify right side
    19,700.70x = 515,787,868.34
  5. Step 5: Solve for x
    x = 515,787,868.34/19,700.70
  6. Step 6: Final answer
    x = 26,181.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.