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Finding the Fourth Proportional to 1,062.48, 1,585.44 and 953.52

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Solution

The fourth proportional to 1,062.48, 1,585.44 and 953.52 is: 1,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.48 : 1,585.44 = 953.52 : x
  2. Step 2: Convert to fraction form
    1,062.48/1,585.44 = 953.52/x
  3. Step 3: Cross multiply
    1,062.48x = 1,585.44 × 953.52
  4. Step 4: Simplify right side
    1,062.48x = 1,511,748.75
  5. Step 5: Solve for x
    x = 1,511,748.75/1,062.48
  6. Step 6: Final answer
    x = 1,422.85

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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.