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Finding the Fourth Proportional to 6,291.84, 8,680.32 and 4,404.48

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Solution

The fourth proportional to 6,291.84, 8,680.32 and 4,404.48 is: 6,076.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.84 : 8,680.32 = 4,404.48 : x
  2. Step 2: Convert to fraction form
    6,291.84/8,680.32 = 4,404.48/x
  3. Step 3: Cross multiply
    6,291.84x = 8,680.32 × 4,404.48
  4. Step 4: Simplify right side
    6,291.84x = 38,232,295.83
  5. Step 5: Solve for x
    x = 38,232,295.83/6,291.84
  6. Step 6: Final answer
    x = 6,076.49

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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.