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Finding the Fourth Proportional to 6,368.16, 8,787.20 and 4,383.68

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Solution

The fourth proportional to 6,368.16, 8,787.20 and 4,383.68 is: 6,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.16 : 8,787.20 = 4,383.68 : x
  2. Step 2: Convert to fraction form
    6,368.16/8,787.20 = 4,383.68/x
  3. Step 3: Cross multiply
    6,368.16x = 8,787.20 × 4,383.68
  4. Step 4: Simplify right side
    6,368.16x = 38,520,272.90
  5. Step 5: Solve for x
    x = 38,520,272.90/6,368.16
  6. Step 6: Final answer
    x = 6,048.89

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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.