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Finding the Fourth Proportional to 9,220.48, 13,771.92 and 8,341.64

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Solution

The fourth proportional to 9,220.48, 13,771.92 and 8,341.64 is: 12,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.48 : 13,771.92 = 8,341.64 : x
  2. Step 2: Convert to fraction form
    9,220.48/13,771.92 = 8,341.64/x
  3. Step 3: Cross multiply
    9,220.48x = 13,771.92 × 8,341.64
  4. Step 4: Simplify right side
    9,220.48x = 114,880,398.75
  5. Step 5: Solve for x
    x = 114,880,398.75/9,220.48
  6. Step 6: Final answer
    x = 12,459.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.