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Finding the Fourth Proportional to 2,331.60, 3,495.96 and 792.72

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Solution

The fourth proportional to 2,331.60, 3,495.96 and 792.72 is: 1,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.60 : 3,495.96 = 792.72 : x
  2. Step 2: Convert to fraction form
    2,331.60/3,495.96 = 792.72/x
  3. Step 3: Cross multiply
    2,331.60x = 3,495.96 × 792.72
  4. Step 4: Simplify right side
    2,331.60x = 2,771,317.41
  5. Step 5: Solve for x
    x = 2,771,317.41/2,331.60
  6. Step 6: Final answer
    x = 1,188.59

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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.