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Finding the Fourth Proportional to 18,978,600.62, 26,190,594.62 and 10,276,773.20

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Solution

The fourth proportional to 18,978,600.62, 26,190,594.62 and 10,276,773.20 is: 14,182,015.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,978,600.62 : 26,190,594.62 = 10,276,773.20 : x
  2. Step 2: Convert to fraction form
    18,978,600.62/26,190,594.62 = 10,276,773.20/x
  3. Step 3: Cross multiply
    18,978,600.62x = 26,190,594.62 × 10,276,773.20
  4. Step 4: Simplify right side
    18,978,600.62x = 269,154,800,700,543.34
  5. Step 5: Solve for x
    x = 269,154,800,700,543.34/18,978,600.62
  6. Step 6: Final answer
    x = 14,182,015.11

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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.