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Finding the Fourth Proportional to 14,625.48, 20,184.48 and 8,339.88

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Solution

The fourth proportional to 14,625.48, 20,184.48 and 8,339.88 is: 11,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,625.48 : 20,184.48 = 8,339.88 : x
  2. Step 2: Convert to fraction form
    14,625.48/20,184.48 = 8,339.88/x
  3. Step 3: Cross multiply
    14,625.48x = 20,184.48 × 8,339.88
  4. Step 4: Simplify right side
    14,625.48x = 168,336,141.06
  5. Step 5: Solve for x
    x = 168,336,141.06/14,625.48
  6. Step 6: Final answer
    x = 11,509.79

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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.