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Finding the Fourth Proportional to 7,179.04, 9,880.11 and 6,074.50

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Solution

The fourth proportional to 7,179.04, 9,880.11 and 6,074.50 is: 8,359.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.04 : 9,880.11 = 6,074.50 : x
  2. Step 2: Convert to fraction form
    7,179.04/9,880.11 = 6,074.50/x
  3. Step 3: Cross multiply
    7,179.04x = 9,880.11 × 6,074.50
  4. Step 4: Simplify right side
    7,179.04x = 60,016,728.20
  5. Step 5: Solve for x
    x = 60,016,728.20/7,179.04
  6. Step 6: Final answer
    x = 8,359.99

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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.