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Finding the Fourth Proportional to 34,633.59, 47,794.28 and 18,718

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Solution

The fourth proportional to 34,633.59, 47,794.28 and 18,718 is: 25,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,633.59 : 47,794.28 = 18,718 : x
  2. Step 2: Convert to fraction form
    34,633.59/47,794.28 = 18,718/x
  3. Step 3: Cross multiply
    34,633.59x = 47,794.28 × 18,718
  4. Step 4: Simplify right side
    34,633.59x = 894,613,333.04
  5. Step 5: Solve for x
    x = 894,613,333.04/34,633.59
  6. Step 6: Final answer
    x = 25,830.80

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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.