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Finding the Fourth Proportional to 18,492.51, 25,520.16 and 11,322.27

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Solution

The fourth proportional to 18,492.51, 25,520.16 and 11,322.27 is: 15,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.51 : 25,520.16 = 11,322.27 : x
  2. Step 2: Convert to fraction form
    18,492.51/25,520.16 = 11,322.27/x
  3. Step 3: Cross multiply
    18,492.51x = 25,520.16 × 11,322.27
  4. Step 4: Simplify right side
    18,492.51x = 288,946,141.96
  5. Step 5: Solve for x
    x = 288,946,141.96/18,492.51
  6. Step 6: Final answer
    x = 15,625.04

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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.