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Finding the Fourth Proportional to 19,310.28, 28,965.93 and 6,162.64

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Solution

The fourth proportional to 19,310.28, 28,965.93 and 6,162.64 is: 9,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.28 : 28,965.93 = 6,162.64 : x
  2. Step 2: Convert to fraction form
    19,310.28/28,965.93 = 6,162.64/x
  3. Step 3: Cross multiply
    19,310.28x = 28,965.93 × 6,162.64
  4. Step 4: Simplify right side
    19,310.28x = 178,506,598.86
  5. Step 5: Solve for x
    x = 178,506,598.86/19,310.28
  6. Step 6: Final answer
    x = 9,244.12

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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.