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Finding the Fourth Proportional to 18,146.92, 25,036.50 and 10,188.04

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Solution

The fourth proportional to 18,146.92, 25,036.50 and 10,188.04 is: 14,055.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.92 : 25,036.50 = 10,188.04 : x
  2. Step 2: Convert to fraction form
    18,146.92/25,036.50 = 10,188.04/x
  3. Step 3: Cross multiply
    18,146.92x = 25,036.50 × 10,188.04
  4. Step 4: Simplify right side
    18,146.92x = 255,072,863.46
  5. Step 5: Solve for x
    x = 255,072,863.46/18,146.92
  6. Step 6: Final answer
    x = 14,055.99

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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.