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Finding the Fourth Proportional to 18,122.16, 25,008.62 and 10,573.68

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Solution

The fourth proportional to 18,122.16, 25,008.62 and 10,573.68 is: 14,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.16 : 25,008.62 = 10,573.68 : x
  2. Step 2: Convert to fraction form
    18,122.16/25,008.62 = 10,573.68/x
  3. Step 3: Cross multiply
    18,122.16x = 25,008.62 × 10,573.68
  4. Step 4: Simplify right side
    18,122.16x = 264,433,109.03
  5. Step 5: Solve for x
    x = 264,433,109.03/18,122.16
  6. Step 6: Final answer
    x = 14,591.70

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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.