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Finding the Fourth Proportional to 11,972,117.60, 17,958,176.40 and 11,972,117.60

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Solution

The fourth proportional to 11,972,117.60, 17,958,176.40 and 11,972,117.60 is: 17,958,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972,117.60 : 17,958,176.40 = 11,972,117.60 : x
  2. Step 2: Convert to fraction form
    11,972,117.60/17,958,176.40 = 11,972,117.60/x
  3. Step 3: Cross multiply
    11,972,117.60x = 17,958,176.40 × 11,972,117.60
  4. Step 4: Simplify right side
    11,972,117.60x = 214,997,399,742,344.62
  5. Step 5: Solve for x
    x = 214,997,399,742,344.62/11,972,117.60
  6. Step 6: Final answer
    x = 17,958,176.40

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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.