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Finding the Fourth Proportional to 5,776.60, 7,971.71 and 3,258.71

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Solution

The fourth proportional to 5,776.60, 7,971.71 and 3,258.71 is: 4,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.60 : 7,971.71 = 3,258.71 : x
  2. Step 2: Convert to fraction form
    5,776.60/7,971.71 = 3,258.71/x
  3. Step 3: Cross multiply
    5,776.60x = 7,971.71 × 3,258.71
  4. Step 4: Simplify right side
    5,776.60x = 25,977,434.94
  5. Step 5: Solve for x
    x = 25,977,434.94/5,776.60
  6. Step 6: Final answer
    x = 4,497.01

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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.