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Finding the Fourth Proportional to 11,811,960.60, 17,717,940.90 and 10,111,349.40

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Solution

The fourth proportional to 11,811,960.60, 17,717,940.90 and 10,111,349.40 is: 15,167,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811,960.60 : 17,717,940.90 = 10,111,349.40 : x
  2. Step 2: Convert to fraction form
    11,811,960.60/17,717,940.90 = 10,111,349.40/x
  3. Step 3: Cross multiply
    11,811,960.60x = 17,717,940.90 × 10,111,349.40
  4. Step 4: Simplify right side
    11,811,960.60x = 179,152,291,088,450.44
  5. Step 5: Solve for x
    x = 179,152,291,088,450.44/11,811,960.60
  6. Step 6: Final answer
    x = 15,167,024.10

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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.