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Finding the Fourth Proportional to 18,701.10, 28,050.03 and 6,217.11

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Solution

The fourth proportional to 18,701.10, 28,050.03 and 6,217.11 is: 9,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.10 : 28,050.03 = 6,217.11 : x
  2. Step 2: Convert to fraction form
    18,701.10/28,050.03 = 6,217.11/x
  3. Step 3: Cross multiply
    18,701.10x = 28,050.03 × 6,217.11
  4. Step 4: Simplify right side
    18,701.10x = 174,390,122.01
  5. Step 5: Solve for x
    x = 174,390,122.01/18,701.10
  6. Step 6: Final answer
    x = 9,325.13

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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.