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Finding the Fourth Proportional to 8,873,126.40, 13,309,646.40 and 3,477,964.80

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Solution

The fourth proportional to 8,873,126.40, 13,309,646.40 and 3,477,964.80 is: 5,216,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873,126.40 : 13,309,646.40 = 3,477,964.80 : x
  2. Step 2: Convert to fraction form
    8,873,126.40/13,309,646.40 = 3,477,964.80/x
  3. Step 3: Cross multiply
    8,873,126.40x = 13,309,646.40 × 3,477,964.80
  4. Step 4: Simplify right side
    8,873,126.40x = 46,290,481,679,646.72
  5. Step 5: Solve for x
    x = 46,290,481,679,646.72/8,873,126.40
  6. Step 6: Final answer
    x = 5,216,930.27

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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.