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Finding the Fourth Proportional to 5,809.28, 8,705.46 and 4,347.68

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Solution

The fourth proportional to 5,809.28, 8,705.46 and 4,347.68 is: 6,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.28 : 8,705.46 = 4,347.68 : x
  2. Step 2: Convert to fraction form
    5,809.28/8,705.46 = 4,347.68/x
  3. Step 3: Cross multiply
    5,809.28x = 8,705.46 × 4,347.68
  4. Step 4: Simplify right side
    5,809.28x = 37,848,554.33
  5. Step 5: Solve for x
    x = 37,848,554.33/5,809.28
  6. Step 6: Final answer
    x = 6,515.19

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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.