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Finding the Fourth Proportional to 61,321, 84,622.26 and 34,468.06

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Solution

The fourth proportional to 61,321, 84,622.26 and 34,468.06 is: 47,565.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,321 : 84,622.26 = 34,468.06 : x
  2. Step 2: Convert to fraction form
    61,321/84,622.26 = 34,468.06/x
  3. Step 3: Cross multiply
    61,321x = 84,622.26 × 34,468.06
  4. Step 4: Simplify right side
    61,321x = 2,916,765,135.02
  5. Step 5: Solve for x
    x = 2,916,765,135.02/61,321
  6. Step 6: Final answer
    x = 47,565.52

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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.