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Finding the Fourth Proportional to 4,787.48, 7,185.54 and 2,597.78

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Solution

The fourth proportional to 4,787.48, 7,185.54 and 2,597.78 is: 3,899.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.48 : 7,185.54 = 2,597.78 : x
  2. Step 2: Convert to fraction form
    4,787.48/7,185.54 = 2,597.78/x
  3. Step 3: Cross multiply
    4,787.48x = 7,185.54 × 2,597.78
  4. Step 4: Simplify right side
    4,787.48x = 18,666,452.10
  5. Step 5: Solve for x
    x = 18,666,452.10/4,787.48
  6. Step 6: Final answer
    x = 3,899.01

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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.