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Finding the Fourth Proportional to 23,808.60, 35,688.60 and 13,942.80

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Solution

The fourth proportional to 23,808.60, 35,688.60 and 13,942.80 is: 20,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,808.60 : 35,688.60 = 13,942.80 : x
  2. Step 2: Convert to fraction form
    23,808.60/35,688.60 = 13,942.80/x
  3. Step 3: Cross multiply
    23,808.60x = 35,688.60 × 13,942.80
  4. Step 4: Simplify right side
    23,808.60x = 497,599,012.08
  5. Step 5: Solve for x
    x = 497,599,012.08/23,808.60
  6. Step 6: Final answer
    x = 20,899.97

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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.