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Finding the Fourth Proportional to 43,813.60, 65,720.40 and 25,086.40

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Solution

The fourth proportional to 43,813.60, 65,720.40 and 25,086.40 is: 37,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,813.60 : 65,720.40 = 25,086.40 : x
  2. Step 2: Convert to fraction form
    43,813.60/65,720.40 = 25,086.40/x
  3. Step 3: Cross multiply
    43,813.60x = 65,720.40 × 25,086.40
  4. Step 4: Simplify right side
    43,813.60x = 1,648,688,242.56
  5. Step 5: Solve for x
    x = 1,648,688,242.56/43,813.60
  6. Step 6: Final answer
    x = 37,629.60

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1.5x scale

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.