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Finding the Fourth Proportional to 5,912,991.60, 8,867,413.80 and 3,072,159.60

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Solution

The fourth proportional to 5,912,991.60, 8,867,413.80 and 3,072,159.60 is: 4,607,162.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912,991.60 : 8,867,413.80 = 3,072,159.60 : x
  2. Step 2: Convert to fraction form
    5,912,991.60/8,867,413.80 = 3,072,159.60/x
  3. Step 3: Cross multiply
    5,912,991.60x = 8,867,413.80 × 3,072,159.60
  4. Step 4: Simplify right side
    5,912,991.60x = 27,242,110,432,842.48
  5. Step 5: Solve for x
    x = 27,242,110,432,842.48/5,912,991.60
  6. Step 6: Final answer
    x = 4,607,162.04

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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.