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Finding the Fourth Proportional to 7,809,484.65, 11,721,783.39 and 3,768,816.93

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Solution

The fourth proportional to 7,809,484.65, 11,721,783.39 and 3,768,816.93 is: 5,656,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809,484.65 : 11,721,783.39 = 3,768,816.93 : x
  2. Step 2: Convert to fraction form
    7,809,484.65/11,721,783.39 = 3,768,816.93/x
  3. Step 3: Cross multiply
    7,809,484.65x = 11,721,783.39 × 3,768,816.93
  4. Step 4: Simplify right side
    7,809,484.65x = 44,177,255,690,024.80
  5. Step 5: Solve for x
    x = 44,177,255,690,024.80/7,809,484.65
  6. Step 6: Final answer
    x = 5,656,872.08

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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.