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Finding the Fourth Proportional to 16,858.10, 23,557.60 and 16,858.10

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Solution

The fourth proportional to 16,858.10, 23,557.60 and 16,858.10 is: 23,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,858.10 : 23,557.60 = 16,858.10 : x
  2. Step 2: Convert to fraction form
    16,858.10/23,557.60 = 16,858.10/x
  3. Step 3: Cross multiply
    16,858.10x = 23,557.60 × 16,858.10
  4. Step 4: Simplify right side
    16,858.10x = 397,136,376.56
  5. Step 5: Solve for x
    x = 397,136,376.56/16,858.10
  6. Step 6: Final answer
    x = 23,557.60

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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.