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Finding the Fourth Proportional to 9,843,563.88, 13,584,099.78 and 5,492,387.88

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Solution

The fourth proportional to 9,843,563.88, 13,584,099.78 and 5,492,387.88 is: 7,579,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843,563.88 : 13,584,099.78 = 5,492,387.88 : x
  2. Step 2: Convert to fraction form
    9,843,563.88/13,584,099.78 = 5,492,387.88/x
  3. Step 3: Cross multiply
    9,843,563.88x = 13,584,099.78 × 5,492,387.88
  4. Step 4: Simplify right side
    9,843,563.88x = 74,609,144,992,382.66
  5. Step 5: Solve for x
    x = 74,609,144,992,382.66/9,843,563.88
  6. Step 6: Final answer
    x = 7,579,485.02

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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.