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Finding the Fourth Proportional to 61,779.69, 85,249.67 and 37,907.37

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Solution

The fourth proportional to 61,779.69, 85,249.67 and 37,907.37 is: 52,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,779.69 : 85,249.67 = 37,907.37 : x
  2. Step 2: Convert to fraction form
    61,779.69/85,249.67 = 37,907.37/x
  3. Step 3: Cross multiply
    61,779.69x = 85,249.67 × 37,907.37
  4. Step 4: Simplify right side
    61,779.69x = 3,231,590,593.53
  5. Step 5: Solve for x
    x = 3,231,590,593.53/61,779.69
  6. Step 6: Final answer
    x = 52,308.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.