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Finding the Fourth Proportional to 40,992.99, 61,496.49 and 18,808.26

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Solution

The fourth proportional to 40,992.99, 61,496.49 and 18,808.26 is: 28,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,992.99 : 61,496.49 = 18,808.26 : x
  2. Step 2: Convert to fraction form
    40,992.99/61,496.49 = 18,808.26/x
  3. Step 3: Cross multiply
    40,992.99x = 61,496.49 × 18,808.26
  4. Step 4: Simplify right side
    40,992.99x = 1,156,641,973.01
  5. Step 5: Solve for x
    x = 1,156,641,973.01/40,992.99
  6. Step 6: Final answer
    x = 28,215.60

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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.