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Finding the Fourth Proportional to 7,482.30, 11,211.30 and 7,044.90

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Solution

The fourth proportional to 7,482.30, 11,211.30 and 7,044.90 is: 10,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.30 : 11,211.30 = 7,044.90 : x
  2. Step 2: Convert to fraction form
    7,482.30/11,211.30 = 7,044.90/x
  3. Step 3: Cross multiply
    7,482.30x = 11,211.30 × 7,044.90
  4. Step 4: Simplify right side
    7,482.30x = 78,982,487.37
  5. Step 5: Solve for x
    x = 78,982,487.37/7,482.30
  6. Step 6: Final answer
    x = 10,555.91

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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.