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Finding the Fourth Proportional to 11,897.80, 17,836.66 and 7,505.58

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Solution

The fourth proportional to 11,897.80, 17,836.66 and 7,505.58 is: 11,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.80 : 17,836.66 = 7,505.58 : x
  2. Step 2: Convert to fraction form
    11,897.80/17,836.66 = 7,505.58/x
  3. Step 3: Cross multiply
    11,897.80x = 17,836.66 × 7,505.58
  4. Step 4: Simplify right side
    11,897.80x = 133,874,478.56
  5. Step 5: Solve for x
    x = 133,874,478.56/11,897.80
  6. Step 6: Final answer
    x = 11,252.04

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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.