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Finding the Fourth Proportional to 14,872.01, 20,522.57 and 8,157.51

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Solution

The fourth proportional to 14,872.01, 20,522.57 and 8,157.51 is: 11,256.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.01 : 20,522.57 = 8,157.51 : x
  2. Step 2: Convert to fraction form
    14,872.01/20,522.57 = 8,157.51/x
  3. Step 3: Cross multiply
    14,872.01x = 20,522.57 × 8,157.51
  4. Step 4: Simplify right side
    14,872.01x = 167,413,029.21
  5. Step 5: Solve for x
    x = 167,413,029.21/14,872.01
  6. Step 6: Final answer
    x = 11,256.92

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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.