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Finding the Fourth Proportional to 7,660.73, 10,569.94 and 4,472.20

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Solution

The fourth proportional to 7,660.73, 10,569.94 and 4,472.20 is: 6,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.73 : 10,569.94 = 4,472.20 : x
  2. Step 2: Convert to fraction form
    7,660.73/10,569.94 = 4,472.20/x
  3. Step 3: Cross multiply
    7,660.73x = 10,569.94 × 4,472.20
  4. Step 4: Simplify right side
    7,660.73x = 47,270,810.46
  5. Step 5: Solve for x
    x = 47,270,810.46/7,660.73
  6. Step 6: Final answer
    x = 6,170.54

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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.