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Finding the Fourth Proportional to 5,374.81, 8,060.15 and 2,087.47

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Solution

The fourth proportional to 5,374.81, 8,060.15 and 2,087.47 is: 3,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.81 : 8,060.15 = 2,087.47 : x
  2. Step 2: Convert to fraction form
    5,374.81/8,060.15 = 2,087.47/x
  3. Step 3: Cross multiply
    5,374.81x = 8,060.15 × 2,087.47
  4. Step 4: Simplify right side
    5,374.81x = 16,825,338.86
  5. Step 5: Solve for x
    x = 16,825,338.86/5,374.81
  6. Step 6: Final answer
    x = 3,130.40

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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.