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Finding the Fourth Proportional to 6,564.80, 9,856.80 and 4,625.60

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Solution

The fourth proportional to 6,564.80, 9,856.80 and 4,625.60 is: 6,945.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,564.80 : 9,856.80 = 4,625.60 : x
  2. Step 2: Convert to fraction form
    6,564.80/9,856.80 = 4,625.60/x
  3. Step 3: Cross multiply
    6,564.80x = 9,856.80 × 4,625.60
  4. Step 4: Simplify right side
    6,564.80x = 45,593,614.08
  5. Step 5: Solve for x
    x = 45,593,614.08/6,564.80
  6. Step 6: Final answer
    x = 6,945.16

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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.