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Finding the Fourth Proportional to 6,259.60, 8,639.02 and 3,571.48

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Solution

The fourth proportional to 6,259.60, 8,639.02 and 3,571.48 is: 4,929.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,259.60 : 8,639.02 = 3,571.48 : x
  2. Step 2: Convert to fraction form
    6,259.60/8,639.02 = 3,571.48/x
  3. Step 3: Cross multiply
    6,259.60x = 8,639.02 × 3,571.48
  4. Step 4: Simplify right side
    6,259.60x = 30,854,087.15
  5. Step 5: Solve for x
    x = 30,854,087.15/6,259.60
  6. Step 6: Final answer
    x = 4,929.08

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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.