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Finding the Fourth Proportional to 17,810.91, 26,706.48 and 7,288.32

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Solution

The fourth proportional to 17,810.91, 26,706.48 and 7,288.32 is: 10,928.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,810.91 : 26,706.48 = 7,288.32 : x
  2. Step 2: Convert to fraction form
    17,810.91/26,706.48 = 7,288.32/x
  3. Step 3: Cross multiply
    17,810.91x = 26,706.48 × 7,288.32
  4. Step 4: Simplify right side
    17,810.91x = 194,645,372.31
  5. Step 5: Solve for x
    x = 194,645,372.31/17,810.91
  6. Step 6: Final answer
    x = 10,928.44

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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.