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Finding the Fourth Proportional to 14,361, 19,818.92 and 8,392.32

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Solution

The fourth proportional to 14,361, 19,818.92 and 8,392.32 is: 11,581.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,361 : 19,818.92 = 8,392.32 : x
  2. Step 2: Convert to fraction form
    14,361/19,818.92 = 8,392.32/x
  3. Step 3: Cross multiply
    14,361x = 19,818.92 × 8,392.32
  4. Step 4: Simplify right side
    14,361x = 166,326,718.69
  5. Step 5: Solve for x
    x = 166,326,718.69/14,361
  6. Step 6: Final answer
    x = 11,581.83

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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.