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Finding the Fourth Proportional to 15,792,413.04, 21,789,795 and 9,173,068.32

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Solution

The fourth proportional to 15,792,413.04, 21,789,795 and 9,173,068.32 is: 12,656,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,792,413.04 : 21,789,795 = 9,173,068.32 : x
  2. Step 2: Convert to fraction form
    15,792,413.04/21,789,795 = 9,173,068.32/x
  3. Step 3: Cross multiply
    15,792,413.04x = 21,789,795 × 9,173,068.32
  4. Step 4: Simplify right side
    15,792,413.04x = 199,879,278,213,794.41
  5. Step 5: Solve for x
    x = 199,879,278,213,794.41/15,792,413.04
  6. Step 6: Final answer
    x = 12,656,664.80

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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.