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Finding the Fourth Proportional to 26,481,987.60, 39,722,981.40 and 13,706,408.40

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Solution

The fourth proportional to 26,481,987.60, 39,722,981.40 and 13,706,408.40 is: 20,559,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,481,987.60 : 39,722,981.40 = 13,706,408.40 : x
  2. Step 2: Convert to fraction form
    26,481,987.60/39,722,981.40 = 13,706,408.40/x
  3. Step 3: Cross multiply
    26,481,987.60x = 39,722,981.40 × 13,706,408.40
  4. Step 4: Simplify right side
    26,481,987.60x = 544,459,405,934,003.75
  5. Step 5: Solve for x
    x = 544,459,405,934,003.75/26,481,987.60
  6. Step 6: Final answer
    x = 20,559,612.60

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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.