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Finding the Fourth Proportional to 12,019.58, 16,587.05 and 6,714.60

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Solution

The fourth proportional to 12,019.58, 16,587.05 and 6,714.60 is: 9,266.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.58 : 16,587.05 = 6,714.60 : x
  2. Step 2: Convert to fraction form
    12,019.58/16,587.05 = 6,714.60/x
  3. Step 3: Cross multiply
    12,019.58x = 16,587.05 × 6,714.60
  4. Step 4: Simplify right side
    12,019.58x = 111,375,405.93
  5. Step 5: Solve for x
    x = 111,375,405.93/12,019.58
  6. Step 6: Final answer
    x = 9,266.16

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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.