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Finding the Fourth Proportional to 13,592,983.20, 20,389,474.80 and 11,104,663.20

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Solution

The fourth proportional to 13,592,983.20, 20,389,474.80 and 11,104,663.20 is: 16,656,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592,983.20 : 20,389,474.80 = 11,104,663.20 : x
  2. Step 2: Convert to fraction form
    13,592,983.20/20,389,474.80 = 11,104,663.20/x
  3. Step 3: Cross multiply
    13,592,983.20x = 20,389,474.80 × 11,104,663.20
  4. Step 4: Simplify right side
    13,592,983.20x = 226,418,250,478,887.34
  5. Step 5: Solve for x
    x = 226,418,250,478,887.34/13,592,983.20
  6. Step 6: Final answer
    x = 16,656,994.80

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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.