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Finding the Fourth Proportional to 17,987.14, 26,969.03 and 7,454.31

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Solution

The fourth proportional to 17,987.14, 26,969.03 and 7,454.31 is: 11,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.14 : 26,969.03 = 7,454.31 : x
  2. Step 2: Convert to fraction form
    17,987.14/26,969.03 = 7,454.31/x
  3. Step 3: Cross multiply
    17,987.14x = 26,969.03 × 7,454.31
  4. Step 4: Simplify right side
    17,987.14x = 201,035,510.02
  5. Step 5: Solve for x
    x = 201,035,510.02/17,987.14
  6. Step 6: Final answer
    x = 11,176.62

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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.