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Finding the Fourth Proportional to 7,622.60, 10,554.18 and 7,233.80

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Solution

The fourth proportional to 7,622.60, 10,554.18 and 7,233.80 is: 10,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.60 : 10,554.18 = 7,233.80 : x
  2. Step 2: Convert to fraction form
    7,622.60/10,554.18 = 7,233.80/x
  3. Step 3: Cross multiply
    7,622.60x = 10,554.18 × 7,233.80
  4. Step 4: Simplify right side
    7,622.60x = 76,346,827.28
  5. Step 5: Solve for x
    x = 76,346,827.28/7,622.60
  6. Step 6: Final answer
    x = 10,015.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.