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Finding the Fourth Proportional to 11,779.84, 17,669.76 and 4,763.04

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Solution

The fourth proportional to 11,779.84, 17,669.76 and 4,763.04 is: 7,144.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.84 : 17,669.76 = 4,763.04 : x
  2. Step 2: Convert to fraction form
    11,779.84/17,669.76 = 4,763.04/x
  3. Step 3: Cross multiply
    11,779.84x = 17,669.76 × 4,763.04
  4. Step 4: Simplify right side
    11,779.84x = 84,161,773.67
  5. Step 5: Solve for x
    x = 84,161,773.67/11,779.84
  6. Step 6: Final answer
    x = 7,144.56

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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.