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Finding the Fourth Proportional to 61,566.87, 92,355.54 and 19,435.68

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Solution

The fourth proportional to 61,566.87, 92,355.54 and 19,435.68 is: 29,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,566.87 : 92,355.54 = 19,435.68 : x
  2. Step 2: Convert to fraction form
    61,566.87/92,355.54 = 19,435.68/x
  3. Step 3: Cross multiply
    61,566.87x = 92,355.54 × 19,435.68
  4. Step 4: Simplify right side
    61,566.87x = 1,794,992,259.89
  5. Step 5: Solve for x
    x = 1,794,992,259.89/61,566.87
  6. Step 6: Final answer
    x = 29,155.17

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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.