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Finding the Fourth Proportional to 40,711.50, 61,068.42 and 13,009.50

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Solution

The fourth proportional to 40,711.50, 61,068.42 and 13,009.50 is: 19,514.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,711.50 : 61,068.42 = 13,009.50 : x
  2. Step 2: Convert to fraction form
    40,711.50/61,068.42 = 13,009.50/x
  3. Step 3: Cross multiply
    40,711.50x = 61,068.42 × 13,009.50
  4. Step 4: Simplify right side
    40,711.50x = 794,469,609.99
  5. Step 5: Solve for x
    x = 794,469,609.99/40,711.50
  6. Step 6: Final answer
    x = 19,514.62

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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.