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Finding the Fourth Proportional to 22,695,786.40, 34,043,679.60 and 15,529,424.80

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Solution

The fourth proportional to 22,695,786.40, 34,043,679.60 and 15,529,424.80 is: 23,294,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695,786.40 : 34,043,679.60 = 15,529,424.80 : x
  2. Step 2: Convert to fraction form
    22,695,786.40/34,043,679.60 = 15,529,424.80/x
  3. Step 3: Cross multiply
    22,695,786.40x = 34,043,679.60 × 15,529,424.80
  4. Step 4: Simplify right side
    22,695,786.40x = 528,678,762,263,494.12
  5. Step 5: Solve for x
    x = 528,678,762,263,494.12/22,695,786.40
  6. Step 6: Final answer
    x = 23,294,137.20

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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.