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Finding the Fourth Proportional to 6,472,057.44, 8,932,967.79 and 3,720,341.06

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Solution

The fourth proportional to 6,472,057.44, 8,932,967.79 and 3,720,341.06 is: 5,134,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472,057.44 : 8,932,967.79 = 3,720,341.06 : x
  2. Step 2: Convert to fraction form
    6,472,057.44/8,932,967.79 = 3,720,341.06/x
  3. Step 3: Cross multiply
    6,472,057.44x = 8,932,967.79 × 3,720,341.06
  4. Step 4: Simplify right side
    6,472,057.44x = 33,233,686,812,129.62
  5. Step 5: Solve for x
    x = 33,233,686,812,129.62/6,472,057.44
  6. Step 6: Final answer
    x = 5,134,949.30

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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.