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Finding the Fourth Proportional to 7,379.64, 11,068.65 and 4,600.80

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Solution

The fourth proportional to 7,379.64, 11,068.65 and 4,600.80 is: 6,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.64 : 11,068.65 = 4,600.80 : x
  2. Step 2: Convert to fraction form
    7,379.64/11,068.65 = 4,600.80/x
  3. Step 3: Cross multiply
    7,379.64x = 11,068.65 × 4,600.80
  4. Step 4: Simplify right side
    7,379.64x = 50,924,644.92
  5. Step 5: Solve for x
    x = 50,924,644.92/7,379.64
  6. Step 6: Final answer
    x = 6,900.70

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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.