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Finding the Fourth Proportional to 17,986.72, 26,980.08 and 7,598.56

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Solution

The fourth proportional to 17,986.72, 26,980.08 and 7,598.56 is: 11,397.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.72 : 26,980.08 = 7,598.56 : x
  2. Step 2: Convert to fraction form
    17,986.72/26,980.08 = 7,598.56/x
  3. Step 3: Cross multiply
    17,986.72x = 26,980.08 × 7,598.56
  4. Step 4: Simplify right side
    17,986.72x = 205,009,756.68
  5. Step 5: Solve for x
    x = 205,009,756.68/17,986.72
  6. Step 6: Final answer
    x = 11,397.84

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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.