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Finding the Fourth Proportional to 11,779.77, 17,666.89 and 5,544.10

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Solution

The fourth proportional to 11,779.77, 17,666.89 and 5,544.10 is: 8,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.77 : 17,666.89 = 5,544.10 : x
  2. Step 2: Convert to fraction form
    11,779.77/17,666.89 = 5,544.10/x
  3. Step 3: Cross multiply
    11,779.77x = 17,666.89 × 5,544.10
  4. Step 4: Simplify right side
    11,779.77x = 97,947,004.85
  5. Step 5: Solve for x
    x = 97,947,004.85/11,779.77
  6. Step 6: Final answer
    x = 8,314.85

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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.