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Finding the Fourth Proportional to 14,111.54, 21,174.54 and 6,219.56

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Solution

The fourth proportional to 14,111.54, 21,174.54 and 6,219.56 is: 9,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.54 : 21,174.54 = 6,219.56 : x
  2. Step 2: Convert to fraction form
    14,111.54/21,174.54 = 6,219.56/x
  3. Step 3: Cross multiply
    14,111.54x = 21,174.54 × 6,219.56
  4. Step 4: Simplify right side
    14,111.54x = 131,696,322.00
  5. Step 5: Solve for x
    x = 131,696,322.00/14,111.54
  6. Step 6: Final answer
    x = 9,332.53

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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.