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Finding the Fourth Proportional to 9,173.90, 12,659.96 and 4,982.15

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Solution

The fourth proportional to 9,173.90, 12,659.96 and 4,982.15 is: 6,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.90 : 12,659.96 = 4,982.15 : x
  2. Step 2: Convert to fraction form
    9,173.90/12,659.96 = 4,982.15/x
  3. Step 3: Cross multiply
    9,173.90x = 12,659.96 × 4,982.15
  4. Step 4: Simplify right side
    9,173.90x = 63,073,794.80
  5. Step 5: Solve for x
    x = 63,073,794.80/9,173.90
  6. Step 6: Final answer
    x = 6,875.35

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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.