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Finding the Fourth Proportional to 7,298,978.24, 10,071,879.80 and 4,035,346.09

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Solution

The fourth proportional to 7,298,978.24, 10,071,879.80 and 4,035,346.09 is: 5,568,384.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,298,978.24 : 10,071,879.80 = 4,035,346.09 : x
  2. Step 2: Convert to fraction form
    7,298,978.24/10,071,879.80 = 4,035,346.09/x
  3. Step 3: Cross multiply
    7,298,978.24x = 10,071,879.80 × 4,035,346.09
  4. Step 4: Simplify right side
    7,298,978.24x = 40,643,520,724,523.55
  5. Step 5: Solve for x
    x = 40,643,520,724,523.55/7,298,978.24
  6. Step 6: Final answer
    x = 5,568,384.97

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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.