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Finding the Fourth Proportional to 40,458.78, 55,857.04 and 35,970.11

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Solution

The fourth proportional to 40,458.78, 55,857.04 and 35,970.11 is: 49,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,458.78 : 55,857.04 = 35,970.11 : x
  2. Step 2: Convert to fraction form
    40,458.78/55,857.04 = 35,970.11/x
  3. Step 3: Cross multiply
    40,458.78x = 55,857.04 × 35,970.11
  4. Step 4: Simplify right side
    40,458.78x = 2,009,183,413.94
  5. Step 5: Solve for x
    x = 2,009,183,413.94/40,458.78
  6. Step 6: Final answer
    x = 49,660.01

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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.