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Finding the Fourth Proportional to 1,924.66, 2,884.59 and 936.66

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Solution

The fourth proportional to 1,924.66, 2,884.59 and 936.66 is: 1,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.66 : 2,884.59 = 936.66 : x
  2. Step 2: Convert to fraction form
    1,924.66/2,884.59 = 936.66/x
  3. Step 3: Cross multiply
    1,924.66x = 2,884.59 × 936.66
  4. Step 4: Simplify right side
    1,924.66x = 2,701,875.39
  5. Step 5: Solve for x
    x = 2,701,875.39/1,924.66
  6. Step 6: Final answer
    x = 1,403.82

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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.