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Finding the Fourth Proportional to 11,891.03, 16,409.54 and 6,585.84

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Solution

The fourth proportional to 11,891.03, 16,409.54 and 6,585.84 is: 9,088.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.03 : 16,409.54 = 6,585.84 : x
  2. Step 2: Convert to fraction form
    11,891.03/16,409.54 = 6,585.84/x
  3. Step 3: Cross multiply
    11,891.03x = 16,409.54 × 6,585.84
  4. Step 4: Simplify right side
    11,891.03x = 108,070,621.38
  5. Step 5: Solve for x
    x = 108,070,621.38/11,891.03
  6. Step 6: Final answer
    x = 9,088.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.