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Finding the Fourth Proportional to 9,945,978.04, 13,725,429.96 and 5,595,067.72

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Solution

The fourth proportional to 9,945,978.04, 13,725,429.96 and 5,595,067.72 is: 7,721,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945,978.04 : 13,725,429.96 = 5,595,067.72 : x
  2. Step 2: Convert to fraction form
    9,945,978.04/13,725,429.96 = 5,595,067.72/x
  3. Step 3: Cross multiply
    9,945,978.04x = 13,725,429.96 × 5,595,067.72
  4. Step 4: Simplify right side
    9,945,978.04x = 76,794,710,112,316.89
  5. Step 5: Solve for x
    x = 76,794,710,112,316.89/9,945,978.04
  6. Step 6: Final answer
    x = 7,721,182.35

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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.