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Finding the Fourth Proportional to 14,684.52, 20,263.68 and 8,396.88

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Solution

The fourth proportional to 14,684.52, 20,263.68 and 8,396.88 is: 11,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,684.52 : 20,263.68 = 8,396.88 : x
  2. Step 2: Convert to fraction form
    14,684.52/20,263.68 = 8,396.88/x
  3. Step 3: Cross multiply
    14,684.52x = 20,263.68 × 8,396.88
  4. Step 4: Simplify right side
    14,684.52x = 170,151,689.32
  5. Step 5: Solve for x
    x = 170,151,689.32/14,684.52
  6. Step 6: Final answer
    x = 11,587.15

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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.