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Finding the Fourth Proportional to 63,413.60, 87,509.28 and 35,120.48

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Solution

The fourth proportional to 63,413.60, 87,509.28 and 35,120.48 is: 48,465.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,413.60 : 87,509.28 = 35,120.48 : x
  2. Step 2: Convert to fraction form
    63,413.60/87,509.28 = 35,120.48/x
  3. Step 3: Cross multiply
    63,413.60x = 87,509.28 × 35,120.48
  4. Step 4: Simplify right side
    63,413.60x = 3,073,367,918.05
  5. Step 5: Solve for x
    x = 3,073,367,918.05/63,413.60
  6. Step 6: Final answer
    x = 48,465.44

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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.