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Finding the Fourth Proportional to 14,839, 20,477.86 and 8,124.68

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Solution

The fourth proportional to 14,839, 20,477.86 and 8,124.68 is: 11,212.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839 : 20,477.86 = 8,124.68 : x
  2. Step 2: Convert to fraction form
    14,839/20,477.86 = 8,124.68/x
  3. Step 3: Cross multiply
    14,839x = 20,477.86 × 8,124.68
  4. Step 4: Simplify right side
    14,839x = 166,376,059.58
  5. Step 5: Solve for x
    x = 166,376,059.58/14,839
  6. Step 6: Final answer
    x = 11,212.08

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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.