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Finding the Fourth Proportional to 14,263.92, 21,394.16 and 5,945.20

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Solution

The fourth proportional to 14,263.92, 21,394.16 and 5,945.20 is: 8,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.92 : 21,394.16 = 5,945.20 : x
  2. Step 2: Convert to fraction form
    14,263.92/21,394.16 = 5,945.20/x
  3. Step 3: Cross multiply
    14,263.92x = 21,394.16 × 5,945.20
  4. Step 4: Simplify right side
    14,263.92x = 127,192,560.03
  5. Step 5: Solve for x
    x = 127,192,560.03/14,263.92
  6. Step 6: Final answer
    x = 8,917.08

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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.