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Finding the Fourth Proportional to 5,261.42, 7,260.90 and 2,903.42

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Solution

The fourth proportional to 5,261.42, 7,260.90 and 2,903.42 is: 4,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.42 : 7,260.90 = 2,903.42 : x
  2. Step 2: Convert to fraction form
    5,261.42/7,260.90 = 2,903.42/x
  3. Step 3: Cross multiply
    5,261.42x = 7,260.90 × 2,903.42
  4. Step 4: Simplify right side
    5,261.42x = 21,081,442.28
  5. Step 5: Solve for x
    x = 21,081,442.28/5,261.42
  6. Step 6: Final answer
    x = 4,006.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.