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Finding the Fourth Proportional to 5,871,617.60, 8,815,720.80 and 3,632,129.60

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Solution

The fourth proportional to 5,871,617.60, 8,815,720.80 and 3,632,129.60 is: 5,453,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871,617.60 : 8,815,720.80 = 3,632,129.60 : x
  2. Step 2: Convert to fraction form
    5,871,617.60/8,815,720.80 = 3,632,129.60/x
  3. Step 3: Cross multiply
    5,871,617.60x = 8,815,720.80 × 3,632,129.60
  4. Step 4: Simplify right side
    5,871,617.60x = 32,019,840,463,015.68
  5. Step 5: Solve for x
    x = 32,019,840,463,015.68/5,871,617.60
  6. Step 6: Final answer
    x = 5,453,325.24

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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.