Home / 18,575.90-25,609.43-13,261.48

Finding the Fourth Proportional to 18,575.90, 25,609.43 and 13,261.48

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Solution

The fourth proportional to 18,575.90, 25,609.43 and 13,261.48 is: 18,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.90 : 25,609.43 = 13,261.48 : x
  2. Step 2: Convert to fraction form
    18,575.90/25,609.43 = 13,261.48/x
  3. Step 3: Cross multiply
    18,575.90x = 25,609.43 × 13,261.48
  4. Step 4: Simplify right side
    18,575.90x = 339,618,943.76
  5. Step 5: Solve for x
    x = 339,618,943.76/18,575.90
  6. Step 6: Final answer
    x = 18,282.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.