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Finding the Fourth Proportional to 17,987.80, 26,981.88 and 6,301

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Solution

The fourth proportional to 17,987.80, 26,981.88 and 6,301 is: 9,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.80 : 26,981.88 = 6,301 : x
  2. Step 2: Convert to fraction form
    17,987.80/26,981.88 = 6,301/x
  3. Step 3: Cross multiply
    17,987.80x = 26,981.88 × 6,301
  4. Step 4: Simplify right side
    17,987.80x = 170,012,825.88
  5. Step 5: Solve for x
    x = 170,012,825.88/17,987.80
  6. Step 6: Final answer
    x = 9,451.56

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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.