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Finding the Fourth Proportional to 5,872,596.80, 8,806,821.60 and 2,086,203.20

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Solution

The fourth proportional to 5,872,596.80, 8,806,821.60 and 2,086,203.20 is: 3,128,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872,596.80 : 8,806,821.60 = 2,086,203.20 : x
  2. Step 2: Convert to fraction form
    5,872,596.80/8,806,821.60 = 2,086,203.20/x
  3. Step 3: Cross multiply
    5,872,596.80x = 8,806,821.60 × 2,086,203.20
  4. Step 4: Simplify right side
    5,872,596.80x = 18,372,819,403,749.12
  5. Step 5: Solve for x
    x = 18,372,819,403,749.12/5,872,596.80
  6. Step 6: Final answer
    x = 3,128,568.17

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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.