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Finding the Fourth Proportional to 62,509.61, 86,263.86 and 34,215.90

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Solution

The fourth proportional to 62,509.61, 86,263.86 and 34,215.90 is: 47,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,509.61 : 86,263.86 = 34,215.90 : x
  2. Step 2: Convert to fraction form
    62,509.61/86,263.86 = 34,215.90/x
  3. Step 3: Cross multiply
    62,509.61x = 86,263.86 × 34,215.90
  4. Step 4: Simplify right side
    62,509.61x = 2,951,595,607.37
  5. Step 5: Solve for x
    x = 2,951,595,607.37/62,509.61
  6. Step 6: Final answer
    x = 47,218.27

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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.