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Finding the Fourth Proportional to 15,362.62, 21,193.94 and 9,392.38

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Solution

The fourth proportional to 15,362.62, 21,193.94 and 9,392.38 is: 12,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.62 : 21,193.94 = 9,392.38 : x
  2. Step 2: Convert to fraction form
    15,362.62/21,193.94 = 9,392.38/x
  3. Step 3: Cross multiply
    15,362.62x = 21,193.94 × 9,392.38
  4. Step 4: Simplify right side
    15,362.62x = 199,061,538.18
  5. Step 5: Solve for x
    x = 199,061,538.18/15,362.62
  6. Step 6: Final answer
    x = 12,957.53

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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.