Home / 43,638.93-65,491.02-16,989.12

Finding the Fourth Proportional to 43,638.93, 65,491.02 and 16,989.12

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Solution

The fourth proportional to 43,638.93, 65,491.02 and 16,989.12 is: 25,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,638.93 : 65,491.02 = 16,989.12 : x
  2. Step 2: Convert to fraction form
    43,638.93/65,491.02 = 16,989.12/x
  3. Step 3: Cross multiply
    43,638.93x = 65,491.02 × 16,989.12
  4. Step 4: Simplify right side
    43,638.93x = 1,112,634,797.70
  5. Step 5: Solve for x
    x = 1,112,634,797.70/43,638.93
  6. Step 6: Final answer
    x = 25,496.38

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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.