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Finding the Fourth Proportional to 18,550.53, 27,827.08 and 7,457.22

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Solution

The fourth proportional to 18,550.53, 27,827.08 and 7,457.22 is: 11,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.53 : 27,827.08 = 7,457.22 : x
  2. Step 2: Convert to fraction form
    18,550.53/27,827.08 = 7,457.22/x
  3. Step 3: Cross multiply
    18,550.53x = 27,827.08 × 7,457.22
  4. Step 4: Simplify right side
    18,550.53x = 207,512,638.87
  5. Step 5: Solve for x
    x = 207,512,638.87/18,550.53
  6. Step 6: Final answer
    x = 11,186.35

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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.