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Finding the Fourth Proportional to 5,869.12, 8,094.72 and 4,987.84

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Solution

The fourth proportional to 5,869.12, 8,094.72 and 4,987.84 is: 6,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869.12 : 8,094.72 = 4,987.84 : x
  2. Step 2: Convert to fraction form
    5,869.12/8,094.72 = 4,987.84/x
  3. Step 3: Cross multiply
    5,869.12x = 8,094.72 × 4,987.84
  4. Step 4: Simplify right side
    5,869.12x = 40,375,168.20
  5. Step 5: Solve for x
    x = 40,375,168.20/5,869.12
  6. Step 6: Final answer
    x = 6,879.25

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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.