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Finding the Fourth Proportional to 14,481.96, 21,688.88 and 7,063.16

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Solution

The fourth proportional to 14,481.96, 21,688.88 and 7,063.16 is: 10,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.96 : 21,688.88 = 7,063.16 : x
  2. Step 2: Convert to fraction form
    14,481.96/21,688.88 = 7,063.16/x
  3. Step 3: Cross multiply
    14,481.96x = 21,688.88 × 7,063.16
  4. Step 4: Simplify right side
    14,481.96x = 153,192,029.66
  5. Step 5: Solve for x
    x = 153,192,029.66/14,481.96
  6. Step 6: Final answer
    x = 10,578.13

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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.