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Finding the Fourth Proportional to 61,879.34, 85,393.32 and 33,585.14

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Solution

The fourth proportional to 61,879.34, 85,393.32 and 33,585.14 is: 46,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.34 : 85,393.32 = 33,585.14 : x
  2. Step 2: Convert to fraction form
    61,879.34/85,393.32 = 33,585.14/x
  3. Step 3: Cross multiply
    61,879.34x = 85,393.32 × 33,585.14
  4. Step 4: Simplify right side
    61,879.34x = 2,867,946,607.26
  5. Step 5: Solve for x
    x = 2,867,946,607.26/61,879.34
  6. Step 6: Final answer
    x = 46,347.40

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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.