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Finding the Fourth Proportional to 8,530.72, 12,779.12 and 6,673.16

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Solution

The fourth proportional to 8,530.72, 12,779.12 and 6,673.16 is: 9,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.72 : 12,779.12 = 6,673.16 : x
  2. Step 2: Convert to fraction form
    8,530.72/12,779.12 = 6,673.16/x
  3. Step 3: Cross multiply
    8,530.72x = 12,779.12 × 6,673.16
  4. Step 4: Simplify right side
    8,530.72x = 85,277,112.42
  5. Step 5: Solve for x
    x = 85,277,112.42/8,530.72
  6. Step 6: Final answer
    x = 9,996.47

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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.