Home / 43,528.11-65,289.90-11,935.86

Finding the Fourth Proportional to 43,528.11, 65,289.90 and 11,935.86

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Solution

The fourth proportional to 43,528.11, 65,289.90 and 11,935.86 is: 17,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,528.11 : 65,289.90 = 11,935.86 : x
  2. Step 2: Convert to fraction form
    43,528.11/65,289.90 = 11,935.86/x
  3. Step 3: Cross multiply
    43,528.11x = 65,289.90 × 11,935.86
  4. Step 4: Simplify right side
    43,528.11x = 779,291,105.81
  5. Step 5: Solve for x
    x = 779,291,105.81/43,528.11
  6. Step 6: Final answer
    x = 17,903.17

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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.