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Finding the Fourth Proportional to 4,952.09, 7,428.14 and 1,665.19

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Solution

The fourth proportional to 4,952.09, 7,428.14 and 1,665.19 is: 2,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,952.09 : 7,428.14 = 1,665.19 : x
  2. Step 2: Convert to fraction form
    4,952.09/7,428.14 = 1,665.19/x
  3. Step 3: Cross multiply
    4,952.09x = 7,428.14 × 1,665.19
  4. Step 4: Simplify right side
    4,952.09x = 12,369,264.45
  5. Step 5: Solve for x
    x = 12,369,264.45/4,952.09
  6. Step 6: Final answer
    x = 2,497.79

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Similar ratio
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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.