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Finding the Fourth Proportional to 16,616.60, 23,219.50 and 16,616.60

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Solution

The fourth proportional to 16,616.60, 23,219.50 and 16,616.60 is: 23,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.60 : 23,219.50 = 16,616.60 : x
  2. Step 2: Convert to fraction form
    16,616.60/23,219.50 = 16,616.60/x
  3. Step 3: Cross multiply
    16,616.60x = 23,219.50 × 16,616.60
  4. Step 4: Simplify right side
    16,616.60x = 385,829,143.70
  5. Step 5: Solve for x
    x = 385,829,143.70/16,616.60
  6. Step 6: Final answer
    x = 23,219.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.