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Finding the Fourth Proportional to 28,773,972.80, 43,160,959.20 and 17,408,571.20

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Solution

The fourth proportional to 28,773,972.80, 43,160,959.20 and 17,408,571.20 is: 26,112,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773,972.80 : 43,160,959.20 = 17,408,571.20 : x
  2. Step 2: Convert to fraction form
    28,773,972.80/43,160,959.20 = 17,408,571.20/x
  3. Step 3: Cross multiply
    28,773,972.80x = 43,160,959.20 × 17,408,571.20
  4. Step 4: Simplify right side
    28,773,972.80x = 751,370,631,293,495
  5. Step 5: Solve for x
    x = 751,370,631,293,495/28,773,972.80
  6. Step 6: Final answer
    x = 26,112,856.80

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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.