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Finding the Fourth Proportional to 1,062.66, 1,592.58 and 993.36

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Solution

The fourth proportional to 1,062.66, 1,592.58 and 993.36 is: 1,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.66 : 1,592.58 = 993.36 : x
  2. Step 2: Convert to fraction form
    1,062.66/1,592.58 = 993.36/x
  3. Step 3: Cross multiply
    1,062.66x = 1,592.58 × 993.36
  4. Step 4: Simplify right side
    1,062.66x = 1,582,005.27
  5. Step 5: Solve for x
    x = 1,582,005.27/1,062.66
  6. Step 6: Final answer
    x = 1,488.72

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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.