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Finding the Fourth Proportional to 5,642,171.79, 7,786,225.90 and 3,063,852.59

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Solution

The fourth proportional to 5,642,171.79, 7,786,225.90 and 3,063,852.59 is: 4,228,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642,171.79 : 7,786,225.90 = 3,063,852.59 : x
  2. Step 2: Convert to fraction form
    5,642,171.79/7,786,225.90 = 3,063,852.59/x
  3. Step 3: Cross multiply
    5,642,171.79x = 7,786,225.90 × 3,063,852.59
  4. Step 4: Simplify right side
    5,642,171.79x = 23,855,848,381,502.12
  5. Step 5: Solve for x
    x = 23,855,848,381,502.12/5,642,171.79
  6. Step 6: Final answer
    x = 4,228,132.23

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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.