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Finding the Fourth Proportional to 29,455.38, 40,648.10 and 17,518.45

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Solution

The fourth proportional to 29,455.38, 40,648.10 and 17,518.45 is: 24,175.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.38 : 40,648.10 = 17,518.45 : x
  2. Step 2: Convert to fraction form
    29,455.38/40,648.10 = 17,518.45/x
  3. Step 3: Cross multiply
    29,455.38x = 40,648.10 × 17,518.45
  4. Step 4: Simplify right side
    29,455.38x = 712,091,707.45
  5. Step 5: Solve for x
    x = 712,091,707.45/29,455.38
  6. Step 6: Final answer
    x = 24,175.27

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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.