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Finding the Fourth Proportional to 61,191.05, 91,814.12 and 33,078.20

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Solution

The fourth proportional to 61,191.05, 91,814.12 and 33,078.20 is: 49,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,191.05 : 91,814.12 = 33,078.20 : x
  2. Step 2: Convert to fraction form
    61,191.05/91,814.12 = 33,078.20/x
  3. Step 3: Cross multiply
    61,191.05x = 91,814.12 × 33,078.20
  4. Step 4: Simplify right side
    61,191.05x = 3,037,045,447.81
  5. Step 5: Solve for x
    x = 3,037,045,447.81/61,191.05
  6. Step 6: Final answer
    x = 49,632.18

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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.