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Finding the Fourth Proportional to 993.39, 1,482.58 and 967.47

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Solution

The fourth proportional to 993.39, 1,482.58 and 967.47 is: 1,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    993.39 : 1,482.58 = 967.47 : x
  2. Step 2: Convert to fraction form
    993.39/1,482.58 = 967.47/x
  3. Step 3: Cross multiply
    993.39x = 1,482.58 × 967.47
  4. Step 4: Simplify right side
    993.39x = 1,434,349.25
  5. Step 5: Solve for x
    x = 1,434,349.25/993.39
  6. Step 6: Final answer
    x = 1,443.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.