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Finding the Fourth Proportional to 17,779.64, 26,671 and 4,631.98

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Solution

The fourth proportional to 17,779.64, 26,671 and 4,631.98 is: 6,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,779.64 : 26,671 = 4,631.98 : x
  2. Step 2: Convert to fraction form
    17,779.64/26,671 = 4,631.98/x
  3. Step 3: Cross multiply
    17,779.64x = 26,671 × 4,631.98
  4. Step 4: Simplify right side
    17,779.64x = 123,539,538.58
  5. Step 5: Solve for x
    x = 123,539,538.58/17,779.64
  6. Step 6: Final answer
    x = 6,948.37

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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.