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Finding the Fourth Proportional to 18,630.06, 25,709.40 and 10,672.11

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Solution

The fourth proportional to 18,630.06, 25,709.40 and 10,672.11 is: 14,727.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.06 : 25,709.40 = 10,672.11 : x
  2. Step 2: Convert to fraction form
    18,630.06/25,709.40 = 10,672.11/x
  3. Step 3: Cross multiply
    18,630.06x = 25,709.40 × 10,672.11
  4. Step 4: Simplify right side
    18,630.06x = 274,373,544.83
  5. Step 5: Solve for x
    x = 274,373,544.83/18,630.06
  6. Step 6: Final answer
    x = 14,727.46

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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.