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Finding the Fourth Proportional to 14,007.80, 21,044.10 and 9,633.80

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Solution

The fourth proportional to 14,007.80, 21,044.10 and 9,633.80 is: 14,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.80 : 21,044.10 = 9,633.80 : x
  2. Step 2: Convert to fraction form
    14,007.80/21,044.10 = 9,633.80/x
  3. Step 3: Cross multiply
    14,007.80x = 21,044.10 × 9,633.80
  4. Step 4: Simplify right side
    14,007.80x = 202,734,650.58
  5. Step 5: Solve for x
    x = 202,734,650.58/14,007.80
  6. Step 6: Final answer
    x = 14,472.98

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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.