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Finding the Fourth Proportional to 15,959.65, 23,938.58 and 7,072.42

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Solution

The fourth proportional to 15,959.65, 23,938.58 and 7,072.42 is: 10,608.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959.65 : 23,938.58 = 7,072.42 : x
  2. Step 2: Convert to fraction form
    15,959.65/23,938.58 = 7,072.42/x
  3. Step 3: Cross multiply
    15,959.65x = 23,938.58 × 7,072.42
  4. Step 4: Simplify right side
    15,959.65x = 169,303,742.97
  5. Step 5: Solve for x
    x = 169,303,742.97/15,959.65
  6. Step 6: Final answer
    x = 10,608.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.