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Finding the Fourth Proportional to 62,856.33, 86,741.45 and 34,561.95

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Solution

The fourth proportional to 62,856.33, 86,741.45 and 34,561.95 is: 47,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,856.33 : 86,741.45 = 34,561.95 : x
  2. Step 2: Convert to fraction form
    62,856.33/86,741.45 = 34,561.95/x
  3. Step 3: Cross multiply
    62,856.33x = 86,741.45 × 34,561.95
  4. Step 4: Simplify right side
    62,856.33x = 2,997,953,051.31
  5. Step 5: Solve for x
    x = 2,997,953,051.31/62,856.33
  6. Step 6: Final answer
    x = 47,695.33

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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.