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Finding the Fourth Proportional to 15,372.65, 23,052.94 and 7,472.86

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Solution

The fourth proportional to 15,372.65, 23,052.94 and 7,472.86 is: 11,206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.65 : 23,052.94 = 7,472.86 : x
  2. Step 2: Convert to fraction form
    15,372.65/23,052.94 = 7,472.86/x
  3. Step 3: Cross multiply
    15,372.65x = 23,052.94 × 7,472.86
  4. Step 4: Simplify right side
    15,372.65x = 172,271,316.89
  5. Step 5: Solve for x
    x = 172,271,316.89/15,372.65
  6. Step 6: Final answer
    x = 11,206.35

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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.