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Finding the Fourth Proportional to 11,984,151.00, 17,978,890.53 and 5,590,915.77

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Solution

The fourth proportional to 11,984,151.00, 17,978,890.53 and 5,590,915.77 is: 8,387,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984,151.00 : 17,978,890.53 = 5,590,915.77 : x
  2. Step 2: Convert to fraction form
    11,984,151.00/17,978,890.53 = 5,590,915.77/x
  3. Step 3: Cross multiply
    11,984,151.00x = 17,978,890.53 × 5,590,915.77
  4. Step 4: Simplify right side
    11,984,151.00x = 100,518,462,501,386.20
  5. Step 5: Solve for x
    x = 100,518,462,501,386.20/11,984,151.00
  6. Step 6: Final answer
    x = 8,387,616.49

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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.