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Finding the Fourth Proportional to 52,866.33, 72,955.38 and 28,994.55

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Solution

The fourth proportional to 52,866.33, 72,955.38 and 28,994.55 is: 40,012.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,866.33 : 72,955.38 = 28,994.55 : x
  2. Step 2: Convert to fraction form
    52,866.33/72,955.38 = 28,994.55/x
  3. Step 3: Cross multiply
    52,866.33x = 72,955.38 × 28,994.55
  4. Step 4: Simplify right side
    52,866.33x = 2,115,308,413.18
  5. Step 5: Solve for x
    x = 2,115,308,413.18/52,866.33
  6. Step 6: Final answer
    x = 40,012.39

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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.