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Finding the Fourth Proportional to 3,624.70, 5,437.05 and 992.01

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Solution

The fourth proportional to 3,624.70, 5,437.05 and 992.01 is: 1,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.70 : 5,437.05 = 992.01 : x
  2. Step 2: Convert to fraction form
    3,624.70/5,437.05 = 992.01/x
  3. Step 3: Cross multiply
    3,624.70x = 5,437.05 × 992.01
  4. Step 4: Simplify right side
    3,624.70x = 5,393,599.64
  5. Step 5: Solve for x
    x = 5,393,599.64/3,624.70
  6. Step 6: Final answer
    x = 1,488.01

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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.