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Finding the Fourth Proportional to 45,863.94, 68,788.53 and 12,576.24

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Solution

The fourth proportional to 45,863.94, 68,788.53 and 12,576.24 is: 18,862.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,863.94 : 68,788.53 = 12,576.24 : x
  2. Step 2: Convert to fraction form
    45,863.94/68,788.53 = 12,576.24/x
  3. Step 3: Cross multiply
    45,863.94x = 68,788.53 × 12,576.24
  4. Step 4: Simplify right side
    45,863.94x = 865,101,062.53
  5. Step 5: Solve for x
    x = 865,101,062.53/45,863.94
  6. Step 6: Final answer
    x = 18,862.34

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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.