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Finding the Fourth Proportional to 16,999.58, 25,503.06 and 6,611.42

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Solution

The fourth proportional to 16,999.58, 25,503.06 and 6,611.42 is: 9,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.58 : 25,503.06 = 6,611.42 : x
  2. Step 2: Convert to fraction form
    16,999.58/25,503.06 = 6,611.42/x
  3. Step 3: Cross multiply
    16,999.58x = 25,503.06 × 6,611.42
  4. Step 4: Simplify right side
    16,999.58x = 168,611,440.95
  5. Step 5: Solve for x
    x = 168,611,440.95/16,999.58
  6. Step 6: Final answer
    x = 9,918.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.