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Finding the Fourth Proportional to 1,624.64, 2,436.96 and 1,508

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Solution

The fourth proportional to 1,624.64, 2,436.96 and 1,508 is: 2,262

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.64 : 2,436.96 = 1,508 : x
  2. Step 2: Convert to fraction form
    1,624.64/2,436.96 = 1,508/x
  3. Step 3: Cross multiply
    1,624.64x = 2,436.96 × 1,508
  4. Step 4: Simplify right side
    1,624.64x = 3,674,935.68
  5. Step 5: Solve for x
    x = 3,674,935.68/1,624.64
  6. Step 6: Final answer
    x = 2,262

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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.