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Finding the Fourth Proportional to 1,570.14, 2,354.02 and 953.70

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Solution

The fourth proportional to 1,570.14, 2,354.02 and 953.70 is: 1,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.14 : 2,354.02 = 953.70 : x
  2. Step 2: Convert to fraction form
    1,570.14/2,354.02 = 953.70/x
  3. Step 3: Cross multiply
    1,570.14x = 2,354.02 × 953.70
  4. Step 4: Simplify right side
    1,570.14x = 2,245,028.87
  5. Step 5: Solve for x
    x = 2,245,028.87/1,570.14
  6. Step 6: Final answer
    x = 1,429.83

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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.