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Finding the Fourth Proportional to 14,476.60, 21,714.90 and 13,601.80

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Solution

The fourth proportional to 14,476.60, 21,714.90 and 13,601.80 is: 20,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,476.60 : 21,714.90 = 13,601.80 : x
  2. Step 2: Convert to fraction form
    14,476.60/21,714.90 = 13,601.80/x
  3. Step 3: Cross multiply
    14,476.60x = 21,714.90 × 13,601.80
  4. Step 4: Simplify right side
    14,476.60x = 295,361,726.82
  5. Step 5: Solve for x
    x = 295,361,726.82/14,476.60
  6. Step 6: Final answer
    x = 20,402.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.