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Finding the Fourth Proportional to 40,903.41, 61,355.04 and 11,321.16

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Solution

The fourth proportional to 40,903.41, 61,355.04 and 11,321.16 is: 16,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,903.41 : 61,355.04 = 11,321.16 : x
  2. Step 2: Convert to fraction form
    40,903.41/61,355.04 = 11,321.16/x
  3. Step 3: Cross multiply
    40,903.41x = 61,355.04 × 11,321.16
  4. Step 4: Simplify right side
    40,903.41x = 694,610,224.65
  5. Step 5: Solve for x
    x = 694,610,224.65/40,903.41
  6. Step 6: Final answer
    x = 16,981.72

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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.