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Finding the Fourth Proportional to 43,435.59, 65,164.62 and 25,439.01

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Solution

The fourth proportional to 43,435.59, 65,164.62 and 25,439.01 is: 38,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,435.59 : 65,164.62 = 25,439.01 : x
  2. Step 2: Convert to fraction form
    43,435.59/65,164.62 = 25,439.01/x
  3. Step 3: Cross multiply
    43,435.59x = 65,164.62 × 25,439.01
  4. Step 4: Simplify right side
    43,435.59x = 1,657,723,419.83
  5. Step 5: Solve for x
    x = 1,657,723,419.83/43,435.59
  6. Step 6: Final answer
    x = 38,165.10

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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.