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Finding the Fourth Proportional to 6,556,990.50, 9,048,646.89 and 3,840,736.50

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Solution

The fourth proportional to 6,556,990.50, 9,048,646.89 and 3,840,736.50 is: 5,300,216.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,556,990.50 : 9,048,646.89 = 3,840,736.50 : x
  2. Step 2: Convert to fraction form
    6,556,990.50/9,048,646.89 = 3,840,736.50/x
  3. Step 3: Cross multiply
    6,556,990.50x = 9,048,646.89 × 3,840,736.50
  4. Step 4: Simplify right side
    6,556,990.50x = 34,753,468,386,034.49
  5. Step 5: Solve for x
    x = 34,753,468,386,034.49/6,556,990.50
  6. Step 6: Final answer
    x = 5,300,216.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.