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Finding the Fourth Proportional to 9,139.60, 13,714.80 and 6,028.60

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Solution

The fourth proportional to 9,139.60, 13,714.80 and 6,028.60 is: 9,046.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.60 : 13,714.80 = 6,028.60 : x
  2. Step 2: Convert to fraction form
    9,139.60/13,714.80 = 6,028.60/x
  3. Step 3: Cross multiply
    9,139.60x = 13,714.80 × 6,028.60
  4. Step 4: Simplify right side
    9,139.60x = 82,681,043.28
  5. Step 5: Solve for x
    x = 82,681,043.28/9,139.60
  6. Step 6: Final answer
    x = 9,046.46

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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.