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Finding the Fourth Proportional to 11,198,605.54, 15,445,824.90 and 8,445,409.01

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Solution

The fourth proportional to 11,198,605.54, 15,445,824.90 and 8,445,409.01 is: 11,648,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,198,605.54 : 15,445,824.90 = 8,445,409.01 : x
  2. Step 2: Convert to fraction form
    11,198,605.54/15,445,824.90 = 8,445,409.01/x
  3. Step 3: Cross multiply
    11,198,605.54x = 15,445,824.90 × 8,445,409.01
  4. Step 4: Simplify right side
    11,198,605.54x = 130,446,308,726,364.77
  5. Step 5: Solve for x
    x = 130,446,308,726,364.77/11,198,605.54
  6. Step 6: Final answer
    x = 11,648,442.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.