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Finding the Fourth Proportional to 28,472.46, 39,310.47 and 25,483.11

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Solution

The fourth proportional to 28,472.46, 39,310.47 and 25,483.11 is: 35,183.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.46 : 39,310.47 = 25,483.11 : x
  2. Step 2: Convert to fraction form
    28,472.46/39,310.47 = 25,483.11/x
  3. Step 3: Cross multiply
    28,472.46x = 39,310.47 × 25,483.11
  4. Step 4: Simplify right side
    28,472.46x = 1,001,753,031.16
  5. Step 5: Solve for x
    x = 1,001,753,031.16/28,472.46
  6. Step 6: Final answer
    x = 35,183.23

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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.