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Finding the Fourth Proportional to 15,709,930.70, 23,511,751.95 and 13,796,743.10

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Solution

The fourth proportional to 15,709,930.70, 23,511,751.95 and 13,796,743.10 is: 20,648,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,709,930.70 : 23,511,751.95 = 13,796,743.10 : x
  2. Step 2: Convert to fraction form
    15,709,930.70/23,511,751.95 = 13,796,743.10/x
  3. Step 3: Cross multiply
    15,709,930.70x = 23,511,751.95 × 13,796,743.10
  4. Step 4: Simplify right side
    15,709,930.70x = 324,385,601,485,074
  5. Step 5: Solve for x
    x = 324,385,601,485,074/15,709,930.70
  6. Step 6: Final answer
    x = 20,648,442.55

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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.