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Finding the Fourth Proportional to 4,951,749.72, 7,429,762.62 and 2,678,875.08

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Solution

The fourth proportional to 4,951,749.72, 7,429,762.62 and 2,678,875.08 is: 4,019,469.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951,749.72 : 7,429,762.62 = 2,678,875.08 : x
  2. Step 2: Convert to fraction form
    4,951,749.72/7,429,762.62 = 2,678,875.08/x
  3. Step 3: Cross multiply
    4,951,749.72x = 7,429,762.62 × 2,678,875.08
  4. Step 4: Simplify right side
    4,951,749.72x = 19,903,405,933,033.51
  5. Step 5: Solve for x
    x = 19,903,405,933,033.51/4,951,749.72
  6. Step 6: Final answer
    x = 4,019,469.29

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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.