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Finding the Fourth Proportional to 15,672.72, 23,507.94 and 7,354.62

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Solution

The fourth proportional to 15,672.72, 23,507.94 and 7,354.62 is: 11,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.72 : 23,507.94 = 7,354.62 : x
  2. Step 2: Convert to fraction form
    15,672.72/23,507.94 = 7,354.62/x
  3. Step 3: Cross multiply
    15,672.72x = 23,507.94 × 7,354.62
  4. Step 4: Simplify right side
    15,672.72x = 172,891,965.68
  5. Step 5: Solve for x
    x = 172,891,965.68/15,672.72
  6. Step 6: Final answer
    x = 11,031.40

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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.