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Finding the Fourth Proportional to 11,155,057, 15,393,978.90 and 6,326,161

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Solution

The fourth proportional to 11,155,057, 15,393,978.90 and 6,326,161 is: 8,730,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155,057 : 15,393,978.90 = 6,326,161 : x
  2. Step 2: Convert to fraction form
    11,155,057/15,393,978.90 = 6,326,161/x
  3. Step 3: Cross multiply
    11,155,057x = 15,393,978.90 × 6,326,161
  4. Step 4: Simplify right side
    11,155,057x = 97,384,788,952,002.91
  5. Step 5: Solve for x
    x = 97,384,788,952,002.91/11,155,057
  6. Step 6: Final answer
    x = 8,730,102.32

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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.