Home / 17,666.55-26,499.96-5,186.79

Finding the Fourth Proportional to 17,666.55, 26,499.96 and 5,186.79

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Solution

The fourth proportional to 17,666.55, 26,499.96 and 5,186.79 is: 7,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,666.55 : 26,499.96 = 5,186.79 : x
  2. Step 2: Convert to fraction form
    17,666.55/26,499.96 = 5,186.79/x
  3. Step 3: Cross multiply
    17,666.55x = 26,499.96 × 5,186.79
  4. Step 4: Simplify right side
    17,666.55x = 137,449,727.53
  5. Step 5: Solve for x
    x = 137,449,727.53/17,666.55
  6. Step 6: Final answer
    x = 7,780.22

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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.