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Finding the Fourth Proportional to 18,193.16, 25,093.10 and 12,529.74

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Solution

The fourth proportional to 18,193.16, 25,093.10 and 12,529.74 is: 17,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,193.16 : 25,093.10 = 12,529.74 : x
  2. Step 2: Convert to fraction form
    18,193.16/25,093.10 = 12,529.74/x
  3. Step 3: Cross multiply
    18,193.16x = 25,093.10 × 12,529.74
  4. Step 4: Simplify right side
    18,193.16x = 314,410,018.79
  5. Step 5: Solve for x
    x = 314,410,018.79/18,193.16
  6. Step 6: Final answer
    x = 17,281.77

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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.