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Finding the Fourth Proportional to 5,764,953.21, 7,955,637.20 and 3,151,468.77

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Solution

The fourth proportional to 5,764,953.21, 7,955,637.20 and 3,151,468.77 is: 4,349,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,764,953.21 : 7,955,637.20 = 3,151,468.77 : x
  2. Step 2: Convert to fraction form
    5,764,953.21/7,955,637.20 = 3,151,468.77/x
  3. Step 3: Cross multiply
    5,764,953.21x = 7,955,637.20 × 3,151,468.77
  4. Step 4: Simplify right side
    5,764,953.21x = 25,071,942,181,250.25
  5. Step 5: Solve for x
    x = 25,071,942,181,250.25/5,764,953.21
  6. Step 6: Final answer
    x = 4,349,027.87

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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.