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Finding the Fourth Proportional to 15,193.56, 20,968.56 and 9,225.48

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Solution

The fourth proportional to 15,193.56, 20,968.56 and 9,225.48 is: 12,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.56 : 20,968.56 = 9,225.48 : x
  2. Step 2: Convert to fraction form
    15,193.56/20,968.56 = 9,225.48/x
  3. Step 3: Cross multiply
    15,193.56x = 20,968.56 × 9,225.48
  4. Step 4: Simplify right side
    15,193.56x = 193,445,030.91
  5. Step 5: Solve for x
    x = 193,445,030.91/15,193.56
  6. Step 6: Final answer
    x = 12,732.04

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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.