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Finding the Fourth Proportional to 25,297.92, 34,911 and 14,119.92

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Solution

The fourth proportional to 25,297.92, 34,911 and 14,119.92 is: 19,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,297.92 : 34,911 = 14,119.92 : x
  2. Step 2: Convert to fraction form
    25,297.92/34,911 = 14,119.92/x
  3. Step 3: Cross multiply
    25,297.92x = 34,911 × 14,119.92
  4. Step 4: Simplify right side
    25,297.92x = 492,940,527.12
  5. Step 5: Solve for x
    x = 492,940,527.12/25,297.92
  6. Step 6: Final answer
    x = 19,485.42

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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.