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Finding the Third Proportional to 2,776,413.59 and 4,290,637.71

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Solution

The third proportional to 2,776,413.59 and 4,290,637.71 is: 6,630,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776,413.59 : 4,290,637.71 = 4,290,637.71 : x
  2. Step 2: Convert to fraction form
    2,776,413.59/4,290,637.71 = 4,290,637.71/x
  3. Step 3: Cross multiply
    2,776,413.59x = 4,290,637.71 × 4,290,637.71
  4. Step 4: Simplify right side
    2,776,413.59x = 18,409,571,966,518.99
  5. Step 5: Solve for x
    x = 18,409,571,966,518.99/2,776,413.59
  6. Step 6: Final answer
    x = 6,630,702.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.