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Finding the Fourth Proportional to 5,986.74, 8,980.12 and 4,958.58

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Solution

The fourth proportional to 5,986.74, 8,980.12 and 4,958.58 is: 7,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.74 : 8,980.12 = 4,958.58 : x
  2. Step 2: Convert to fraction form
    5,986.74/8,980.12 = 4,958.58/x
  3. Step 3: Cross multiply
    5,986.74x = 8,980.12 × 4,958.58
  4. Step 4: Simplify right side
    5,986.74x = 44,528,643.43
  5. Step 5: Solve for x
    x = 44,528,643.43/5,986.74
  6. Step 6: Final answer
    x = 7,437.88

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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.