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Finding the Fourth Proportional to 61,203.88, 84,464.58 and 34,345

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Solution

The fourth proportional to 61,203.88, 84,464.58 and 34,345 is: 47,397.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.88 : 84,464.58 = 34,345 : x
  2. Step 2: Convert to fraction form
    61,203.88/84,464.58 = 34,345/x
  3. Step 3: Cross multiply
    61,203.88x = 84,464.58 × 34,345
  4. Step 4: Simplify right side
    61,203.88x = 2,900,936,000.10
  5. Step 5: Solve for x
    x = 2,900,936,000.10/61,203.88
  6. Step 6: Final answer
    x = 47,397.91

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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.