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Finding the Fourth Proportional to 18,151.50, 24,971.30 and 17,373.90

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Solution

The fourth proportional to 18,151.50, 24,971.30 and 17,373.90 is: 23,901.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.50 : 24,971.30 = 17,373.90 : x
  2. Step 2: Convert to fraction form
    18,151.50/24,971.30 = 17,373.90/x
  3. Step 3: Cross multiply
    18,151.50x = 24,971.30 × 17,373.90
  4. Step 4: Simplify right side
    18,151.50x = 433,848,869.07
  5. Step 5: Solve for x
    x = 433,848,869.07/18,151.50
  6. Step 6: Final answer
    x = 23,901.54

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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.