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Finding the Fourth Proportional to 14,898.88, 20,559.04 and 8,929.44

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Solution

The fourth proportional to 14,898.88, 20,559.04 and 8,929.44 is: 12,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,898.88 : 20,559.04 = 8,929.44 : x
  2. Step 2: Convert to fraction form
    14,898.88/20,559.04 = 8,929.44/x
  3. Step 3: Cross multiply
    14,898.88x = 20,559.04 × 8,929.44
  4. Step 4: Simplify right side
    14,898.88x = 183,580,714.14
  5. Step 5: Solve for x
    x = 183,580,714.14/14,898.88
  6. Step 6: Final answer
    x = 12,321.78

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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.