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Finding the Fourth Proportional to 2,084.52, 3,125.60 and 697.12

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Solution

The fourth proportional to 2,084.52, 3,125.60 and 697.12 is: 1,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.52 : 3,125.60 = 697.12 : x
  2. Step 2: Convert to fraction form
    2,084.52/3,125.60 = 697.12/x
  3. Step 3: Cross multiply
    2,084.52x = 3,125.60 × 697.12
  4. Step 4: Simplify right side
    2,084.52x = 2,178,918.27
  5. Step 5: Solve for x
    x = 2,178,918.27/2,084.52
  6. Step 6: Final answer
    x = 1,045.29

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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.