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Finding the Fourth Proportional to 1,716.70, 2,369.46 and 1,008.70

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Solution

The fourth proportional to 1,716.70, 2,369.46 and 1,008.70 is: 1,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.70 : 2,369.46 = 1,008.70 : x
  2. Step 2: Convert to fraction form
    1,716.70/2,369.46 = 1,008.70/x
  3. Step 3: Cross multiply
    1,716.70x = 2,369.46 × 1,008.70
  4. Step 4: Simplify right side
    1,716.70x = 2,390,074.30
  5. Step 5: Solve for x
    x = 2,390,074.30/1,716.70
  6. Step 6: Final answer
    x = 1,392.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.