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Finding the Fourth Proportional to 7,661.73, 10,573.02 and 4,258.53

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Solution

The fourth proportional to 7,661.73, 10,573.02 and 4,258.53 is: 5,876.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.73 : 10,573.02 = 4,258.53 : x
  2. Step 2: Convert to fraction form
    7,661.73/10,573.02 = 4,258.53/x
  3. Step 3: Cross multiply
    7,661.73x = 10,573.02 × 4,258.53
  4. Step 4: Simplify right side
    7,661.73x = 45,025,522.86
  5. Step 5: Solve for x
    x = 45,025,522.86/7,661.73
  6. Step 6: Final answer
    x = 5,876.68

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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.