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Finding the Fourth Proportional to 61,451.66, 84,811.37 and 34,599.40

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Solution

The fourth proportional to 61,451.66, 84,811.37 and 34,599.40 is: 47,751.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,451.66 : 84,811.37 = 34,599.40 : x
  2. Step 2: Convert to fraction form
    61,451.66/84,811.37 = 34,599.40/x
  3. Step 3: Cross multiply
    61,451.66x = 84,811.37 × 34,599.40
  4. Step 4: Simplify right side
    61,451.66x = 2,934,422,389.65
  5. Step 5: Solve for x
    x = 2,934,422,389.65/61,451.66
  6. Step 6: Final answer
    x = 47,751.72

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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.