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Finding the Fourth Proportional to 7,136,668.22, 9,848,338.61 and 3,873,412.86

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Solution

The fourth proportional to 7,136,668.22, 9,848,338.61 and 3,873,412.86 is: 5,345,166.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,668.22 : 9,848,338.61 = 3,873,412.86 : x
  2. Step 2: Convert to fraction form
    7,136,668.22/9,848,338.61 = 3,873,412.86/x
  3. Step 3: Cross multiply
    7,136,668.22x = 9,848,338.61 × 3,873,412.86
  4. Step 4: Simplify right side
    7,136,668.22x = 38,146,681,402,241.46
  5. Step 5: Solve for x
    x = 38,146,681,402,241.46/7,136,668.22
  6. Step 6: Final answer
    x = 5,345,166.72

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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.