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Finding the Fourth Proportional to 17,779.74, 26,669.28 and 5,308.22

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Solution

The fourth proportional to 17,779.74, 26,669.28 and 5,308.22 is: 7,962.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,779.74 : 26,669.28 = 5,308.22 : x
  2. Step 2: Convert to fraction form
    17,779.74/26,669.28 = 5,308.22/x
  3. Step 3: Cross multiply
    17,779.74x = 26,669.28 × 5,308.22
  4. Step 4: Simplify right side
    17,779.74x = 141,566,245.59
  5. Step 5: Solve for x
    x = 141,566,245.59/17,779.74
  6. Step 6: Final answer
    x = 7,962.22

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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.