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Finding the Fourth Proportional to 14,959.52, 20,637.40 and 8,668.52

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Solution

The fourth proportional to 14,959.52, 20,637.40 and 8,668.52 is: 11,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.52 : 20,637.40 = 8,668.52 : x
  2. Step 2: Convert to fraction form
    14,959.52/20,637.40 = 8,668.52/x
  3. Step 3: Cross multiply
    14,959.52x = 20,637.40 × 8,668.52
  4. Step 4: Simplify right side
    14,959.52x = 178,895,714.65
  5. Step 5: Solve for x
    x = 178,895,714.65/14,959.52
  6. Step 6: Final answer
    x = 11,958.65

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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.