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Finding the Fourth Proportional to 21,773.58, 30,056.73 and 14,709.57

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Solution

The fourth proportional to 21,773.58, 30,056.73 and 14,709.57 is: 20,305.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.58 : 30,056.73 = 14,709.57 : x
  2. Step 2: Convert to fraction form
    21,773.58/30,056.73 = 14,709.57/x
  3. Step 3: Cross multiply
    21,773.58x = 30,056.73 × 14,709.57
  4. Step 4: Simplify right side
    21,773.58x = 442,121,573.91
  5. Step 5: Solve for x
    x = 442,121,573.91/21,773.58
  6. Step 6: Final answer
    x = 20,305.41

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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.