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Finding the Fourth Proportional to 48,410.78, 66,795.95 and 29,290.08

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Solution

The fourth proportional to 48,410.78, 66,795.95 and 29,290.08 is: 40,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,410.78 : 66,795.95 = 29,290.08 : x
  2. Step 2: Convert to fraction form
    48,410.78/66,795.95 = 29,290.08/x
  3. Step 3: Cross multiply
    48,410.78x = 66,795.95 × 29,290.08
  4. Step 4: Simplify right side
    48,410.78x = 1,956,458,719.18
  5. Step 5: Solve for x
    x = 1,956,458,719.18/48,410.78
  6. Step 6: Final answer
    x = 40,413.70

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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.