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Finding the Fourth Proportional to 6,417.60, 8,789.82 and 6,039.26

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Solution

The fourth proportional to 6,417.60, 8,789.82 and 6,039.26 is: 8,271.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417.60 : 8,789.82 = 6,039.26 : x
  2. Step 2: Convert to fraction form
    6,417.60/8,789.82 = 6,039.26/x
  3. Step 3: Cross multiply
    6,417.60x = 8,789.82 × 6,039.26
  4. Step 4: Simplify right side
    6,417.60x = 53,084,052.95
  5. Step 5: Solve for x
    x = 53,084,052.95/6,417.60
  6. Step 6: Final answer
    x = 8,271.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.