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Finding the Fourth Proportional to 14,889,986.70, 20,803,466.10 and 14,889,986.70

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Solution

The fourth proportional to 14,889,986.70, 20,803,466.10 and 14,889,986.70 is: 20,803,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889,986.70 : 20,803,466.10 = 14,889,986.70 : x
  2. Step 2: Convert to fraction form
    14,889,986.70/20,803,466.10 = 14,889,986.70/x
  3. Step 3: Cross multiply
    14,889,986.70x = 20,803,466.10 × 14,889,986.70
  4. Step 4: Simplify right side
    14,889,986.70x = 309,763,333,542,900.88
  5. Step 5: Solve for x
    x = 309,763,333,542,900.88/14,889,986.70
  6. Step 6: Final answer
    x = 20,803,466.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.