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Finding the Fourth Proportional to 2,495.02, 3,742.55 and 851.53

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Solution

The fourth proportional to 2,495.02, 3,742.55 and 851.53 is: 1,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.02 : 3,742.55 = 851.53 : x
  2. Step 2: Convert to fraction form
    2,495.02/3,742.55 = 851.53/x
  3. Step 3: Cross multiply
    2,495.02x = 3,742.55 × 851.53
  4. Step 4: Simplify right side
    2,495.02x = 3,186,893.60
  5. Step 5: Solve for x
    x = 3,186,893.60/2,495.02
  6. Step 6: Final answer
    x = 1,277.30

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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.