Home / 43,403.40-65,105.10-26,490.60

Finding the Fourth Proportional to 43,403.40, 65,105.10 and 26,490.60

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Solution

The fourth proportional to 43,403.40, 65,105.10 and 26,490.60 is: 39,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,403.40 : 65,105.10 = 26,490.60 : x
  2. Step 2: Convert to fraction form
    43,403.40/65,105.10 = 26,490.60/x
  3. Step 3: Cross multiply
    43,403.40x = 65,105.10 × 26,490.60
  4. Step 4: Simplify right side
    43,403.40x = 1,724,673,162.06
  5. Step 5: Solve for x
    x = 1,724,673,162.06/43,403.40
  6. Step 6: Final answer
    x = 39,735.90

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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.