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Finding the Fourth Proportional to 20,846.70, 29,243.70 and 20,846.70

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Solution

The fourth proportional to 20,846.70, 29,243.70 and 20,846.70 is: 29,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.70 : 29,243.70 = 20,846.70 : x
  2. Step 2: Convert to fraction form
    20,846.70/29,243.70 = 20,846.70/x
  3. Step 3: Cross multiply
    20,846.70x = 29,243.70 × 20,846.70
  4. Step 4: Simplify right side
    20,846.70x = 609,634,640.79
  5. Step 5: Solve for x
    x = 609,634,640.79/20,846.70
  6. Step 6: Final answer
    x = 29,243.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.