Home / 55,619.32-83,428.28-13,499.75

Finding the Fourth Proportional to 55,619.32, 83,428.28 and 13,499.75

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Solution

The fourth proportional to 55,619.32, 83,428.28 and 13,499.75 is: 20,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,619.32 : 83,428.28 = 13,499.75 : x
  2. Step 2: Convert to fraction form
    55,619.32/83,428.28 = 13,499.75/x
  3. Step 3: Cross multiply
    55,619.32x = 83,428.28 × 13,499.75
  4. Step 4: Simplify right side
    55,619.32x = 1,126,260,922.93
  5. Step 5: Solve for x
    x = 1,126,260,922.93/55,619.32
  6. Step 6: Final answer
    x = 20,249.46

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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.