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Finding the Fourth Proportional to 23,115.60, 34,624.80 and 18,741.60

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Solution

The fourth proportional to 23,115.60, 34,624.80 and 18,741.60 is: 28,073.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.60 : 34,624.80 = 18,741.60 : x
  2. Step 2: Convert to fraction form
    23,115.60/34,624.80 = 18,741.60/x
  3. Step 3: Cross multiply
    23,115.60x = 34,624.80 × 18,741.60
  4. Step 4: Simplify right side
    23,115.60x = 648,924,151.68
  5. Step 5: Solve for x
    x = 648,924,151.68/23,115.60
  6. Step 6: Final answer
    x = 28,073.00

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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.