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Finding the Fourth Proportional to 3,432.60, 5,138.10 and 2,460.60

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Solution

The fourth proportional to 3,432.60, 5,138.10 and 2,460.60 is: 3,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.60 : 5,138.10 = 2,460.60 : x
  2. Step 2: Convert to fraction form
    3,432.60/5,138.10 = 2,460.60/x
  3. Step 3: Cross multiply
    3,432.60x = 5,138.10 × 2,460.60
  4. Step 4: Simplify right side
    3,432.60x = 12,642,808.86
  5. Step 5: Solve for x
    x = 12,642,808.86/3,432.60
  6. Step 6: Final answer
    x = 3,683.16

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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.