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Finding the Fourth Proportional to 7,450.40, 11,182.80 and 4,534.40

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Solution

The fourth proportional to 7,450.40, 11,182.80 and 4,534.40 is: 6,805.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.40 : 11,182.80 = 4,534.40 : x
  2. Step 2: Convert to fraction form
    7,450.40/11,182.80 = 4,534.40/x
  3. Step 3: Cross multiply
    7,450.40x = 11,182.80 × 4,534.40
  4. Step 4: Simplify right side
    7,450.40x = 50,707,288.32
  5. Step 5: Solve for x
    x = 50,707,288.32/7,450.40
  6. Step 6: Final answer
    x = 6,805.98

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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.