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Finding the Fourth Proportional to 39,273.40, 58,910.10 and 18,213.40

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Solution

The fourth proportional to 39,273.40, 58,910.10 and 18,213.40 is: 27,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,273.40 : 58,910.10 = 18,213.40 : x
  2. Step 2: Convert to fraction form
    39,273.40/58,910.10 = 18,213.40/x
  3. Step 3: Cross multiply
    39,273.40x = 58,910.10 × 18,213.40
  4. Step 4: Simplify right side
    39,273.40x = 1,072,953,215.34
  5. Step 5: Solve for x
    x = 1,072,953,215.34/39,273.40
  6. Step 6: Final answer
    x = 27,320.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.