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Finding the Fourth Proportional to 5,258.24, 7,881.76 and 3,955.68

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Solution

The fourth proportional to 5,258.24, 7,881.76 and 3,955.68 is: 5,929.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258.24 : 7,881.76 = 3,955.68 : x
  2. Step 2: Convert to fraction form
    5,258.24/7,881.76 = 3,955.68/x
  3. Step 3: Cross multiply
    5,258.24x = 7,881.76 × 3,955.68
  4. Step 4: Simplify right side
    5,258.24x = 31,177,720.40
  5. Step 5: Solve for x
    x = 31,177,720.40/5,258.24
  6. Step 6: Final answer
    x = 5,929.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.