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Finding the Fourth Proportional to 14,644.56, 20,210.94 and 8,357.88

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Solution

The fourth proportional to 14,644.56, 20,210.94 and 8,357.88 is: 11,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,644.56 : 20,210.94 = 8,357.88 : x
  2. Step 2: Convert to fraction form
    14,644.56/20,210.94 = 8,357.88/x
  3. Step 3: Cross multiply
    14,644.56x = 20,210.94 × 8,357.88
  4. Step 4: Simplify right side
    14,644.56x = 168,920,611.21
  5. Step 5: Solve for x
    x = 168,920,611.21/14,644.56
  6. Step 6: Final answer
    x = 11,534.70

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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.