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Finding the Fourth Proportional to 16,795,861.60, 25,193,792.40 and 7,209,608.80

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Solution

The fourth proportional to 16,795,861.60, 25,193,792.40 and 7,209,608.80 is: 10,814,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,795,861.60 : 25,193,792.40 = 7,209,608.80 : x
  2. Step 2: Convert to fraction form
    16,795,861.60/25,193,792.40 = 7,209,608.80/x
  3. Step 3: Cross multiply
    16,795,861.60x = 25,193,792.40 × 7,209,608.80
  4. Step 4: Simplify right side
    16,795,861.60x = 181,637,387,392,413.09
  5. Step 5: Solve for x
    x = 181,637,387,392,413.09/16,795,861.60
  6. Step 6: Final answer
    x = 10,814,413.20

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1.5x scale

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.