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Finding the Fourth Proportional to 17,866.58, 26,779.82 and 8,383.53

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Solution

The fourth proportional to 17,866.58, 26,779.82 and 8,383.53 is: 12,565.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,866.58 : 26,779.82 = 8,383.53 : x
  2. Step 2: Convert to fraction form
    17,866.58/26,779.82 = 8,383.53/x
  3. Step 3: Cross multiply
    17,866.58x = 26,779.82 × 8,383.53
  4. Step 4: Simplify right side
    17,866.58x = 224,509,482.87
  5. Step 5: Solve for x
    x = 224,509,482.87/17,866.58
  6. Step 6: Final answer
    x = 12,565.89

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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.