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Finding the Fourth Proportional to 16,608,412.80, 24,912,619.20 and 12,303,740.70

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Solution

The fourth proportional to 16,608,412.80, 24,912,619.20 and 12,303,740.70 is: 18,455,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,608,412.80 : 24,912,619.20 = 12,303,740.70 : x
  2. Step 2: Convert to fraction form
    16,608,412.80/24,912,619.20 = 12,303,740.70/x
  3. Step 3: Cross multiply
    16,608,412.80x = 24,912,619.20 × 12,303,740.70
  4. Step 4: Simplify right side
    16,608,412.80x = 306,518,406,794,641.44
  5. Step 5: Solve for x
    x = 306,518,406,794,641.44/16,608,412.80
  6. Step 6: Final answer
    x = 18,455,611.05

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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.