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Finding the Fourth Proportional to 15,926.60, 23,861.10 and 13,622.60

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Solution

The fourth proportional to 15,926.60, 23,861.10 and 13,622.60 is: 20,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926.60 : 23,861.10 = 13,622.60 : x
  2. Step 2: Convert to fraction form
    15,926.60/23,861.10 = 13,622.60/x
  3. Step 3: Cross multiply
    15,926.60x = 23,861.10 × 13,622.60
  4. Step 4: Simplify right side
    15,926.60x = 325,050,220.86
  5. Step 5: Solve for x
    x = 325,050,220.86/15,926.60
  6. Step 6: Final answer
    x = 20,409.27

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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.