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Finding the Fourth Proportional to 8,395.60, 12,593.40 and 4,507.60

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Solution

The fourth proportional to 8,395.60, 12,593.40 and 4,507.60 is: 6,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.60 : 12,593.40 = 4,507.60 : x
  2. Step 2: Convert to fraction form
    8,395.60/12,593.40 = 4,507.60/x
  3. Step 3: Cross multiply
    8,395.60x = 12,593.40 × 4,507.60
  4. Step 4: Simplify right side
    8,395.60x = 56,766,009.84
  5. Step 5: Solve for x
    x = 56,766,009.84/8,395.60
  6. Step 6: Final answer
    x = 6,761.40

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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.