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Finding the Fourth Proportional to 7,660.75, 10,572.75 and 4,303.57

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Solution

The fourth proportional to 7,660.75, 10,572.75 and 4,303.57 is: 5,939.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.75 : 10,572.75 = 4,303.57 : x
  2. Step 2: Convert to fraction form
    7,660.75/10,572.75 = 4,303.57/x
  3. Step 3: Cross multiply
    7,660.75x = 10,572.75 × 4,303.57
  4. Step 4: Simplify right side
    7,660.75x = 45,500,548.20
  5. Step 5: Solve for x
    x = 45,500,548.20/7,660.75
  6. Step 6: Final answer
    x = 5,939.44

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Half scale
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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.