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Finding the Fourth Proportional to 61,319, 84,619.50 and 34,466.06

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Solution

The fourth proportional to 61,319, 84,619.50 and 34,466.06 is: 47,562.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,319 : 84,619.50 = 34,466.06 : x
  2. Step 2: Convert to fraction form
    61,319/84,619.50 = 34,466.06/x
  3. Step 3: Cross multiply
    61,319x = 84,619.50 × 34,466.06
  4. Step 4: Simplify right side
    61,319x = 2,916,500,764.17
  5. Step 5: Solve for x
    x = 2,916,500,764.17/61,319
  6. Step 6: Final answer
    x = 47,562.76

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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.