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Finding the Fourth Proportional to 6,624.70, 9,931.83 and 4,538.38

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Solution

The fourth proportional to 6,624.70, 9,931.83 and 4,538.38 is: 6,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.70 : 9,931.83 = 4,538.38 : x
  2. Step 2: Convert to fraction form
    6,624.70/9,931.83 = 4,538.38/x
  3. Step 3: Cross multiply
    6,624.70x = 9,931.83 × 4,538.38
  4. Step 4: Simplify right side
    6,624.70x = 45,074,418.64
  5. Step 5: Solve for x
    x = 45,074,418.64/6,624.70
  6. Step 6: Final answer
    x = 6,803.99

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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.