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Finding the Fourth Proportional to 61,091.90, 91,609.09 and 23,669.50

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Solution

The fourth proportional to 61,091.90, 91,609.09 and 23,669.50 is: 35,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,091.90 : 91,609.09 = 23,669.50 : x
  2. Step 2: Convert to fraction form
    61,091.90/91,609.09 = 23,669.50/x
  3. Step 3: Cross multiply
    61,091.90x = 91,609.09 × 23,669.50
  4. Step 4: Simplify right side
    61,091.90x = 2,168,340,779.36
  5. Step 5: Solve for x
    x = 2,168,340,779.36/61,091.90
  6. Step 6: Final answer
    x = 35,493.10

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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.