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Finding the Fourth Proportional to 1,493.62, 2,062.14 and 962.70

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Solution

The fourth proportional to 1,493.62, 2,062.14 and 962.70 is: 1,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.62 : 2,062.14 = 962.70 : x
  2. Step 2: Convert to fraction form
    1,493.62/2,062.14 = 962.70/x
  3. Step 3: Cross multiply
    1,493.62x = 2,062.14 × 962.70
  4. Step 4: Simplify right side
    1,493.62x = 1,985,222.18
  5. Step 5: Solve for x
    x = 1,985,222.18/1,493.62
  6. Step 6: Final answer
    x = 1,329.13

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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.