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Finding the Fourth Proportional to 40,900.80, 61,352.58 and 11,316.16

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Solution

The fourth proportional to 40,900.80, 61,352.58 and 11,316.16 is: 16,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,900.80 : 61,352.58 = 11,316.16 : x
  2. Step 2: Convert to fraction form
    40,900.80/61,352.58 = 11,316.16/x
  3. Step 3: Cross multiply
    40,900.80x = 61,352.58 × 11,316.16
  4. Step 4: Simplify right side
    40,900.80x = 694,275,583.40
  5. Step 5: Solve for x
    x = 694,275,583.40/40,900.80
  6. Step 6: Final answer
    x = 16,974.62

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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.