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Finding the Fourth Proportional to 14,179.16, 19,566.08 and 8,211.22

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Solution

The fourth proportional to 14,179.16, 19,566.08 and 8,211.22 is: 11,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.16 : 19,566.08 = 8,211.22 : x
  2. Step 2: Convert to fraction form
    14,179.16/19,566.08 = 8,211.22/x
  3. Step 3: Cross multiply
    14,179.16x = 19,566.08 × 8,211.22
  4. Step 4: Simplify right side
    14,179.16x = 160,661,387.42
  5. Step 5: Solve for x
    x = 160,661,387.42/14,179.16
  6. Step 6: Final answer
    x = 11,330.81

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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.