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Finding the Fourth Proportional to 6,239,619.93, 9,402,019.87 and 5,127,299.37

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Solution

The fourth proportional to 6,239,619.93, 9,402,019.87 and 5,127,299.37 is: 7,725,946.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239,619.93 : 9,402,019.87 = 5,127,299.37 : x
  2. Step 2: Convert to fraction form
    6,239,619.93/9,402,019.87 = 5,127,299.37/x
  3. Step 3: Cross multiply
    6,239,619.93x = 9,402,019.87 × 5,127,299.37
  4. Step 4: Simplify right side
    6,239,619.93x = 48,206,970,556,178.48
  5. Step 5: Solve for x
    x = 48,206,970,556,178.48/6,239,619.93
  6. Step 6: Final answer
    x = 7,725,946.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.