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Finding the Fourth Proportional to 7,435.77, 11,153.63 and 7,343.49

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Solution

The fourth proportional to 7,435.77, 11,153.63 and 7,343.49 is: 11,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,435.77 : 11,153.63 = 7,343.49 : x
  2. Step 2: Convert to fraction form
    7,435.77/11,153.63 = 7,343.49/x
  3. Step 3: Cross multiply
    7,435.77x = 11,153.63 × 7,343.49
  4. Step 4: Simplify right side
    7,435.77x = 81,906,630.55
  5. Step 5: Solve for x
    x = 81,906,630.55/7,435.77
  6. Step 6: Final answer
    x = 11,015.22

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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.