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Finding the Fourth Proportional to 1,475.16, 2,034.94 and 885.32

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Solution

The fourth proportional to 1,475.16, 2,034.94 and 885.32 is: 1,221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.16 : 2,034.94 = 885.32 : x
  2. Step 2: Convert to fraction form
    1,475.16/2,034.94 = 885.32/x
  3. Step 3: Cross multiply
    1,475.16x = 2,034.94 × 885.32
  4. Step 4: Simplify right side
    1,475.16x = 1,801,573.08
  5. Step 5: Solve for x
    x = 1,801,573.08/1,475.16
  6. Step 6: Final answer
    x = 1,221.27

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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.