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Finding the Fourth Proportional to 18,308.63, 27,453.06 and 8,307.92

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Solution

The fourth proportional to 18,308.63, 27,453.06 and 8,307.92 is: 12,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.63 : 27,453.06 = 8,307.92 : x
  2. Step 2: Convert to fraction form
    18,308.63/27,453.06 = 8,307.92/x
  3. Step 3: Cross multiply
    18,308.63x = 27,453.06 × 8,307.92
  4. Step 4: Simplify right side
    18,308.63x = 228,077,826.24
  5. Step 5: Solve for x
    x = 228,077,826.24/18,308.63
  6. Step 6: Final answer
    x = 12,457.39

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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.