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Finding the Fourth Proportional to 16,855.10, 23,631.70 and 16,855.10

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Solution

The fourth proportional to 16,855.10, 23,631.70 and 16,855.10 is: 23,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.10 : 23,631.70 = 16,855.10 : x
  2. Step 2: Convert to fraction form
    16,855.10/23,631.70 = 16,855.10/x
  3. Step 3: Cross multiply
    16,855.10x = 23,631.70 × 16,855.10
  4. Step 4: Simplify right side
    16,855.10x = 398,314,666.67
  5. Step 5: Solve for x
    x = 398,314,666.67/16,855.10
  6. Step 6: Final answer
    x = 23,631.70

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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.