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Finding the Fourth Proportional to 11,662,818.21, 17,496,953.64 and 3,986,522.01

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Solution

The fourth proportional to 11,662,818.21, 17,496,953.64 and 3,986,522.01 is: 5,980,714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,662,818.21 : 17,496,953.64 = 3,986,522.01 : x
  2. Step 2: Convert to fraction form
    11,662,818.21/17,496,953.64 = 3,986,522.01/x
  3. Step 3: Cross multiply
    11,662,818.21x = 17,496,953.64 × 3,986,522.01
  4. Step 4: Simplify right side
    11,662,818.21x = 69,751,990,793,809.62
  5. Step 5: Solve for x
    x = 69,751,990,793,809.62/11,662,818.21
  6. Step 6: Final answer
    x = 5,980,714.91

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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.