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Finding the Fourth Proportional to 18,750.53, 25,863.47 and 12,025.51

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Solution

The fourth proportional to 18,750.53, 25,863.47 and 12,025.51 is: 16,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.53 : 25,863.47 = 12,025.51 : x
  2. Step 2: Convert to fraction form
    18,750.53/25,863.47 = 12,025.51/x
  3. Step 3: Cross multiply
    18,750.53x = 25,863.47 × 12,025.51
  4. Step 4: Simplify right side
    18,750.53x = 311,021,382.52
  5. Step 5: Solve for x
    x = 311,021,382.52/18,750.53
  6. Step 6: Final answer
    x = 16,587.34

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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.