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Finding the Fourth Proportional to 18,472.60, 25,492.34 and 10,515.34

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Solution

The fourth proportional to 18,472.60, 25,492.34 and 10,515.34 is: 14,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.60 : 25,492.34 = 10,515.34 : x
  2. Step 2: Convert to fraction form
    18,472.60/25,492.34 = 10,515.34/x
  3. Step 3: Cross multiply
    18,472.60x = 25,492.34 × 10,515.34
  4. Step 4: Simplify right side
    18,472.60x = 268,060,622.50
  5. Step 5: Solve for x
    x = 268,060,622.50/18,472.60
  6. Step 6: Final answer
    x = 14,511.26

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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.