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Finding the Fourth Proportional to 6,653.68, 9,978.46 and 2,270.13

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Solution

The fourth proportional to 6,653.68, 9,978.46 and 2,270.13 is: 3,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.68 : 9,978.46 = 2,270.13 : x
  2. Step 2: Convert to fraction form
    6,653.68/9,978.46 = 2,270.13/x
  3. Step 3: Cross multiply
    6,653.68x = 9,978.46 × 2,270.13
  4. Step 4: Simplify right side
    6,653.68x = 22,652,358.31
  5. Step 5: Solve for x
    x = 22,652,358.31/6,653.68
  6. Step 6: Final answer
    x = 3,404.49

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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.