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Finding the Fourth Proportional to 10,872.92, 15,004.58 and 5,904.92

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Solution

The fourth proportional to 10,872.92, 15,004.58 and 5,904.92 is: 8,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.92 : 15,004.58 = 5,904.92 : x
  2. Step 2: Convert to fraction form
    10,872.92/15,004.58 = 5,904.92/x
  3. Step 3: Cross multiply
    10,872.92x = 15,004.58 × 5,904.92
  4. Step 4: Simplify right side
    10,872.92x = 88,600,844.53
  5. Step 5: Solve for x
    x = 88,600,844.53/10,872.92
  6. Step 6: Final answer
    x = 8,148.76

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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.