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Finding the Fourth Proportional to 14,015.84, 19,351.74 and 8,993

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Solution

The fourth proportional to 14,015.84, 19,351.74 and 8,993 is: 12,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.84 : 19,351.74 = 8,993 : x
  2. Step 2: Convert to fraction form
    14,015.84/19,351.74 = 8,993/x
  3. Step 3: Cross multiply
    14,015.84x = 19,351.74 × 8,993
  4. Step 4: Simplify right side
    14,015.84x = 174,030,197.82
  5. Step 5: Solve for x
    x = 174,030,197.82/14,015.84
  6. Step 6: Final answer
    x = 12,416.68

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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.