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Finding the Fourth Proportional to 18,693.46, 28,044.06 and 7,600.15

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Solution

The fourth proportional to 18,693.46, 28,044.06 and 7,600.15 is: 11,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.46 : 28,044.06 = 7,600.15 : x
  2. Step 2: Convert to fraction form
    18,693.46/28,044.06 = 7,600.15/x
  3. Step 3: Cross multiply
    18,693.46x = 28,044.06 × 7,600.15
  4. Step 4: Simplify right side
    18,693.46x = 213,139,062.61
  5. Step 5: Solve for x
    x = 213,139,062.61/18,693.46
  6. Step 6: Final answer
    x = 11,401.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.