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Finding the Fourth Proportional to 8,795.60, 13,200.60 and 8,507.60

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Solution

The fourth proportional to 8,795.60, 13,200.60 and 8,507.60 is: 12,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.60 : 13,200.60 = 8,507.60 : x
  2. Step 2: Convert to fraction form
    8,795.60/13,200.60 = 8,507.60/x
  3. Step 3: Cross multiply
    8,795.60x = 13,200.60 × 8,507.60
  4. Step 4: Simplify right side
    8,795.60x = 112,305,424.56
  5. Step 5: Solve for x
    x = 112,305,424.56/8,795.60
  6. Step 6: Final answer
    x = 12,768.36

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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.