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Finding the Fourth Proportional to 14,211.56, 19,612.06 and 7,924.34

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Solution

The fourth proportional to 14,211.56, 19,612.06 and 7,924.34 is: 10,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.56 : 19,612.06 = 7,924.34 : x
  2. Step 2: Convert to fraction form
    14,211.56/19,612.06 = 7,924.34/x
  3. Step 3: Cross multiply
    14,211.56x = 19,612.06 × 7,924.34
  4. Step 4: Simplify right side
    14,211.56x = 155,412,631.54
  5. Step 5: Solve for x
    x = 155,412,631.54/14,211.56
  6. Step 6: Final answer
    x = 10,935.65

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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.