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Finding the Fourth Proportional to 18,157.92, 25,060.44 and 10,200.72

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Solution

The fourth proportional to 18,157.92, 25,060.44 and 10,200.72 is: 14,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.92 : 25,060.44 = 10,200.72 : x
  2. Step 2: Convert to fraction form
    18,157.92/25,060.44 = 10,200.72/x
  3. Step 3: Cross multiply
    18,157.92x = 25,060.44 × 10,200.72
  4. Step 4: Simplify right side
    18,157.92x = 255,634,531.52
  5. Step 5: Solve for x
    x = 255,634,531.52/18,157.92
  6. Step 6: Final answer
    x = 14,078.40

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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.