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Finding the Fourth Proportional to 5,983.68, 8,258.56 and 4,987.36

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Solution

The fourth proportional to 5,983.68, 8,258.56 and 4,987.36 is: 6,883.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,983.68 : 8,258.56 = 4,987.36 : x
  2. Step 2: Convert to fraction form
    5,983.68/8,258.56 = 4,987.36/x
  3. Step 3: Cross multiply
    5,983.68x = 8,258.56 × 4,987.36
  4. Step 4: Simplify right side
    5,983.68x = 41,188,411.80
  5. Step 5: Solve for x
    x = 41,188,411.80/5,983.68
  6. Step 6: Final answer
    x = 6,883.46

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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.