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Finding the Fourth Proportional to 1,036.44, 1,429.76 and 962.32

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Solution

The fourth proportional to 1,036.44, 1,429.76 and 962.32 is: 1,327.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.44 : 1,429.76 = 962.32 : x
  2. Step 2: Convert to fraction form
    1,036.44/1,429.76 = 962.32/x
  3. Step 3: Cross multiply
    1,036.44x = 1,429.76 × 962.32
  4. Step 4: Simplify right side
    1,036.44x = 1,375,886.64
  5. Step 5: Solve for x
    x = 1,375,886.64/1,036.44
  6. Step 6: Final answer
    x = 1,327.51

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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.