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Finding the Fourth Proportional to 1,062.90, 1,599.48 and 962.16

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Solution

The fourth proportional to 1,062.90, 1,599.48 and 962.16 is: 1,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.90 : 1,599.48 = 962.16 : x
  2. Step 2: Convert to fraction form
    1,062.90/1,599.48 = 962.16/x
  3. Step 3: Cross multiply
    1,062.90x = 1,599.48 × 962.16
  4. Step 4: Simplify right side
    1,062.90x = 1,538,955.68
  5. Step 5: Solve for x
    x = 1,538,955.68/1,062.90
  6. Step 6: Final answer
    x = 1,447.88

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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.