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Finding the Fourth Proportional to 26,837.80, 40,256.70 and 16,858.60

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Solution

The fourth proportional to 26,837.80, 40,256.70 and 16,858.60 is: 25,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,837.80 : 40,256.70 = 16,858.60 : x
  2. Step 2: Convert to fraction form
    26,837.80/40,256.70 = 16,858.60/x
  3. Step 3: Cross multiply
    26,837.80x = 40,256.70 × 16,858.60
  4. Step 4: Simplify right side
    26,837.80x = 678,671,602.62
  5. Step 5: Solve for x
    x = 678,671,602.62/26,837.80
  6. Step 6: Final answer
    x = 25,287.90

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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.