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Finding the Fourth Proportional to 14,044.68, 21,060.90 and 7,021.98

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Solution

The fourth proportional to 14,044.68, 21,060.90 and 7,021.98 is: 10,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,044.68 : 21,060.90 = 7,021.98 : x
  2. Step 2: Convert to fraction form
    14,044.68/21,060.90 = 7,021.98/x
  3. Step 3: Cross multiply
    14,044.68x = 21,060.90 × 7,021.98
  4. Step 4: Simplify right side
    14,044.68x = 147,889,218.58
  5. Step 5: Solve for x
    x = 147,889,218.58/14,044.68
  6. Step 6: Final answer
    x = 10,529.91

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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.