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Finding the Fourth Proportional to 61,876.50, 85,389.39 and 33,582.30

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Solution

The fourth proportional to 61,876.50, 85,389.39 and 33,582.30 is: 46,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,876.50 : 85,389.39 = 33,582.30 : x
  2. Step 2: Convert to fraction form
    61,876.50/85,389.39 = 33,582.30/x
  3. Step 3: Cross multiply
    61,876.50x = 85,389.39 × 33,582.30
  4. Step 4: Simplify right side
    61,876.50x = 2,867,572,111.80
  5. Step 5: Solve for x
    x = 2,867,572,111.80/61,876.50
  6. Step 6: Final answer
    x = 46,343.48

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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.