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Finding the Fourth Proportional to 61,356.92, 92,035.53 and 18,662.72

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Solution

The fourth proportional to 61,356.92, 92,035.53 and 18,662.72 is: 27,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,356.92 : 92,035.53 = 18,662.72 : x
  2. Step 2: Convert to fraction form
    61,356.92/92,035.53 = 18,662.72/x
  3. Step 3: Cross multiply
    61,356.92x = 92,035.53 × 18,662.72
  4. Step 4: Simplify right side
    61,356.92x = 1,717,632,866.26
  5. Step 5: Solve for x
    x = 1,717,632,866.26/61,356.92
  6. Step 6: Final answer
    x = 27,994.12

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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.