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Finding the Fourth Proportional to 47,305.05, 65,213.15 and 37,215.99

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Solution

The fourth proportional to 47,305.05, 65,213.15 and 37,215.99 is: 51,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,305.05 : 65,213.15 = 37,215.99 : x
  2. Step 2: Convert to fraction form
    47,305.05/65,213.15 = 37,215.99/x
  3. Step 3: Cross multiply
    47,305.05x = 65,213.15 × 37,215.99
  4. Step 4: Simplify right side
    47,305.05x = 2,426,971,752.19
  5. Step 5: Solve for x
    x = 2,426,971,752.19/47,305.05
  6. Step 6: Final answer
    x = 51,304.71

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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.