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Finding the Fourth Proportional to 37,674,978.80, 56,516,615.40 and 13,745,634.80

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Solution

The fourth proportional to 37,674,978.80, 56,516,615.40 and 13,745,634.80 is: 20,619,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,674,978.80 : 56,516,615.40 = 13,745,634.80 : x
  2. Step 2: Convert to fraction form
    37,674,978.80/56,516,615.40 = 13,745,634.80/x
  3. Step 3: Cross multiply
    37,674,978.80x = 56,516,615.40 × 13,745,634.80
  4. Step 4: Simplify right side
    37,674,978.80x = 776,856,755,420,456
  5. Step 5: Solve for x
    x = 776,856,755,420,456/37,674,978.80
  6. Step 6: Final answer
    x = 20,619,965.30

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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.