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Finding the Fourth Proportional to 20,541.98, 30,814.59 and 7,395.68

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Solution

The fourth proportional to 20,541.98, 30,814.59 and 7,395.68 is: 11,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.98 : 30,814.59 = 7,395.68 : x
  2. Step 2: Convert to fraction form
    20,541.98/30,814.59 = 7,395.68/x
  3. Step 3: Cross multiply
    20,541.98x = 30,814.59 × 7,395.68
  4. Step 4: Simplify right side
    20,541.98x = 227,894,846.97
  5. Step 5: Solve for x
    x = 227,894,846.97/20,541.98
  6. Step 6: Final answer
    x = 11,094.10

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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.