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Finding the Fourth Proportional to 14,295.73, 19,728.89 and 7,922.19

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Solution

The fourth proportional to 14,295.73, 19,728.89 and 7,922.19 is: 10,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,295.73 : 19,728.89 = 7,922.19 : x
  2. Step 2: Convert to fraction form
    14,295.73/19,728.89 = 7,922.19/x
  3. Step 3: Cross multiply
    14,295.73x = 19,728.89 × 7,922.19
  4. Step 4: Simplify right side
    14,295.73x = 156,295,916.42
  5. Step 5: Solve for x
    x = 156,295,916.42/14,295.73
  6. Step 6: Final answer
    x = 10,933.05

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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.