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Finding the Fourth Proportional to 19,310.76, 28,965.69 and 6,162.93

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Solution

The fourth proportional to 19,310.76, 28,965.69 and 6,162.93 is: 9,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.76 : 28,965.69 = 6,162.93 : x
  2. Step 2: Convert to fraction form
    19,310.76/28,965.69 = 6,162.93/x
  3. Step 3: Cross multiply
    19,310.76x = 28,965.69 × 6,162.93
  4. Step 4: Simplify right side
    19,310.76x = 178,513,519.87
  5. Step 5: Solve for x
    x = 178,513,519.87/19,310.76
  6. Step 6: Final answer
    x = 9,244.25

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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.