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Finding the Fourth Proportional to 8,296.63, 12,443.01 and 4,779.16

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Solution

The fourth proportional to 8,296.63, 12,443.01 and 4,779.16 is: 7,167.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,296.63 : 12,443.01 = 4,779.16 : x
  2. Step 2: Convert to fraction form
    8,296.63/12,443.01 = 4,779.16/x
  3. Step 3: Cross multiply
    8,296.63x = 12,443.01 × 4,779.16
  4. Step 4: Simplify right side
    8,296.63x = 59,467,135.67
  5. Step 5: Solve for x
    x = 59,467,135.67/8,296.63
  6. Step 6: Final answer
    x = 7,167.63

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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.