Home / 26,665.47-39,911.40-19,642.73

Finding the Fourth Proportional to 26,665.47, 39,911.40 and 19,642.73

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Solution

The fourth proportional to 26,665.47, 39,911.40 and 19,642.73 is: 29,400.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,665.47 : 39,911.40 = 19,642.73 : x
  2. Step 2: Convert to fraction form
    26,665.47/39,911.40 = 19,642.73/x
  3. Step 3: Cross multiply
    26,665.47x = 39,911.40 × 19,642.73
  4. Step 4: Simplify right side
    26,665.47x = 783,968,654.57
  5. Step 5: Solve for x
    x = 783,968,654.57/26,665.47
  6. Step 6: Final answer
    x = 29,400.14

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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.