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Finding the Fourth Proportional to 7,240.66, 10,879.14 and 4,609.30

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Solution

The fourth proportional to 7,240.66, 10,879.14 and 4,609.30 is: 6,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.66 : 10,879.14 = 4,609.30 : x
  2. Step 2: Convert to fraction form
    7,240.66/10,879.14 = 4,609.30/x
  3. Step 3: Cross multiply
    7,240.66x = 10,879.14 × 4,609.30
  4. Step 4: Simplify right side
    7,240.66x = 50,145,220.00
  5. Step 5: Solve for x
    x = 50,145,220.00/7,240.66
  6. Step 6: Final answer
    x = 6,925.50

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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.