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Finding the Fourth Proportional to 5,581,507.80, 8,372,261.70 and 5,506,858.20

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Solution

The fourth proportional to 5,581,507.80, 8,372,261.70 and 5,506,858.20 is: 8,260,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581,507.80 : 8,372,261.70 = 5,506,858.20 : x
  2. Step 2: Convert to fraction form
    5,581,507.80/8,372,261.70 = 5,506,858.20/x
  3. Step 3: Cross multiply
    5,581,507.80x = 8,372,261.70 × 5,506,858.20
  4. Step 4: Simplify right side
    5,581,507.80x = 46,104,857,995,190.95
  5. Step 5: Solve for x
    x = 46,104,857,995,190.95/5,581,507.80
  6. Step 6: Final answer
    x = 8,260,287.30

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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.