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Finding the Fourth Proportional to 9,963,847.80, 14,919,199.65 and 9,963,847.80

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Solution

The fourth proportional to 9,963,847.80, 14,919,199.65 and 9,963,847.80 is: 14,919,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963,847.80 : 14,919,199.65 = 9,963,847.80 : x
  2. Step 2: Convert to fraction form
    9,963,847.80/14,919,199.65 = 9,963,847.80/x
  3. Step 3: Cross multiply
    9,963,847.80x = 14,919,199.65 × 9,963,847.80
  4. Step 4: Simplify right side
    9,963,847.80x = 148,652,634,610,413.28
  5. Step 5: Solve for x
    x = 148,652,634,610,413.28/9,963,847.80
  6. Step 6: Final answer
    x = 14,919,199.65

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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.