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Finding the Fourth Proportional to 61,303.98, 91,828.38 and 39,006.90

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Solution

The fourth proportional to 61,303.98, 91,828.38 and 39,006.90 is: 58,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,303.98 : 91,828.38 = 39,006.90 : x
  2. Step 2: Convert to fraction form
    61,303.98/91,828.38 = 39,006.90/x
  3. Step 3: Cross multiply
    61,303.98x = 91,828.38 × 39,006.90
  4. Step 4: Simplify right side
    61,303.98x = 3,581,940,435.82
  5. Step 5: Solve for x
    x = 3,581,940,435.82/61,303.98
  6. Step 6: Final answer
    x = 58,429.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.