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Finding the Fourth Proportional to 12,166.72, 16,790.08 and 6,577.72

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Solution

The fourth proportional to 12,166.72, 16,790.08 and 6,577.72 is: 9,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.72 : 16,790.08 = 6,577.72 : x
  2. Step 2: Convert to fraction form
    12,166.72/16,790.08 = 6,577.72/x
  3. Step 3: Cross multiply
    12,166.72x = 16,790.08 × 6,577.72
  4. Step 4: Simplify right side
    12,166.72x = 110,440,445.02
  5. Step 5: Solve for x
    x = 110,440,445.02/12,166.72
  6. Step 6: Final answer
    x = 9,077.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.