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Finding the Fourth Proportional to 14,508.60, 21,748.20 and 5,749.60

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Solution

The fourth proportional to 14,508.60, 21,748.20 and 5,749.60 is: 8,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508.60 : 21,748.20 = 5,749.60 : x
  2. Step 2: Convert to fraction form
    14,508.60/21,748.20 = 5,749.60/x
  3. Step 3: Cross multiply
    14,508.60x = 21,748.20 × 5,749.60
  4. Step 4: Simplify right side
    14,508.60x = 125,043,450.72
  5. Step 5: Solve for x
    x = 125,043,450.72/14,508.60
  6. Step 6: Final answer
    x = 8,618.57

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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.