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Finding the Fourth Proportional to 18,492.96, 25,520.25 and 10,109.46

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Solution

The fourth proportional to 18,492.96, 25,520.25 and 10,109.46 is: 13,951.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.96 : 25,520.25 = 10,109.46 : x
  2. Step 2: Convert to fraction form
    18,492.96/25,520.25 = 10,109.46/x
  3. Step 3: Cross multiply
    18,492.96x = 25,520.25 × 10,109.46
  4. Step 4: Simplify right side
    18,492.96x = 257,995,946.57
  5. Step 5: Solve for x
    x = 257,995,946.57/18,492.96
  6. Step 6: Final answer
    x = 13,951.04

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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.