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Finding the Fourth Proportional to 36,191,978.04, 54,276,447.78 and 11,926,378.20

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Solution

The fourth proportional to 36,191,978.04, 54,276,447.78 and 11,926,378.20 is: 17,885,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,191,978.04 : 54,276,447.78 = 11,926,378.20 : x
  2. Step 2: Convert to fraction form
    36,191,978.04/54,276,447.78 = 11,926,378.20/x
  3. Step 3: Cross multiply
    36,191,978.04x = 54,276,447.78 × 11,926,378.20
  4. Step 4: Simplify right side
    36,191,978.04x = 647,321,443,576,830.38
  5. Step 5: Solve for x
    x = 647,321,443,576,830.38/36,191,978.04
  6. Step 6: Final answer
    x = 17,885,771.34

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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.