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Finding the Fourth Proportional to 61,370.42, 84,681.30 and 34,511.33

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Solution

The fourth proportional to 61,370.42, 84,681.30 and 34,511.33 is: 47,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,370.42 : 84,681.30 = 34,511.33 : x
  2. Step 2: Convert to fraction form
    61,370.42/84,681.30 = 34,511.33/x
  3. Step 3: Cross multiply
    61,370.42x = 84,681.30 × 34,511.33
  4. Step 4: Simplify right side
    61,370.42x = 2,922,463,865.72
  5. Step 5: Solve for x
    x = 2,922,463,865.72/61,370.42
  6. Step 6: Final answer
    x = 47,620.08

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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.