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Finding the Fourth Proportional to 9,057.92, 12,520.84 and 7,557.09

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Solution

The fourth proportional to 9,057.92, 12,520.84 and 7,557.09 is: 10,446.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,057.92 : 12,520.84 = 7,557.09 : x
  2. Step 2: Convert to fraction form
    9,057.92/12,520.84 = 7,557.09/x
  3. Step 3: Cross multiply
    9,057.92x = 12,520.84 × 7,557.09
  4. Step 4: Simplify right side
    9,057.92x = 94,621,114.76
  5. Step 5: Solve for x
    x = 94,621,114.76/9,057.92
  6. Step 6: Final answer
    x = 10,446.23

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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.