Home / 26,579.20-39,868.80-19,926.40

Finding the Fourth Proportional to 26,579.20, 39,868.80 and 19,926.40

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Solution

The fourth proportional to 26,579.20, 39,868.80 and 19,926.40 is: 29,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,579.20 : 39,868.80 = 19,926.40 : x
  2. Step 2: Convert to fraction form
    26,579.20/39,868.80 = 19,926.40/x
  3. Step 3: Cross multiply
    26,579.20x = 39,868.80 × 19,926.40
  4. Step 4: Simplify right side
    26,579.20x = 794,441,656.32
  5. Step 5: Solve for x
    x = 794,441,656.32/26,579.20
  6. Step 6: Final answer
    x = 29,889.60

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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.