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Finding the Fourth Proportional to 43,453.80, 65,259.90 and 38,010.60

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Solution

The fourth proportional to 43,453.80, 65,259.90 and 38,010.60 is: 57,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,453.80 : 65,259.90 = 38,010.60 : x
  2. Step 2: Convert to fraction form
    43,453.80/65,259.90 = 38,010.60/x
  3. Step 3: Cross multiply
    43,453.80x = 65,259.90 × 38,010.60
  4. Step 4: Simplify right side
    43,453.80x = 2,480,567,954.94
  5. Step 5: Solve for x
    x = 2,480,567,954.94/43,453.80
  6. Step 6: Final answer
    x = 57,085.18

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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.