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Finding the Fourth Proportional to 14,927.08, 20,598.54 and 8,211.61

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Solution

The fourth proportional to 14,927.08, 20,598.54 and 8,211.61 is: 11,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,927.08 : 20,598.54 = 8,211.61 : x
  2. Step 2: Convert to fraction form
    14,927.08/20,598.54 = 8,211.61/x
  3. Step 3: Cross multiply
    14,927.08x = 20,598.54 × 8,211.61
  4. Step 4: Simplify right side
    14,927.08x = 169,147,177.05
  5. Step 5: Solve for x
    x = 169,147,177.05/14,927.08
  6. Step 6: Final answer
    x = 11,331.56

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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.