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Finding the Fourth Proportional to 8,779.74, 13,170.60 and 2,935.14

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Solution

The fourth proportional to 8,779.74, 13,170.60 and 2,935.14 is: 4,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.74 : 13,170.60 = 2,935.14 : x
  2. Step 2: Convert to fraction form
    8,779.74/13,170.60 = 2,935.14/x
  3. Step 3: Cross multiply
    8,779.74x = 13,170.60 × 2,935.14
  4. Step 4: Simplify right side
    8,779.74x = 38,657,554.88
  5. Step 5: Solve for x
    x = 38,657,554.88/8,779.74
  6. Step 6: Final answer
    x = 4,403.04

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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.