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Finding the Fourth Proportional to 1,674.80, 2,513.16 and 750.32

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Solution

The fourth proportional to 1,674.80, 2,513.16 and 750.32 is: 1,125.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.80 : 2,513.16 = 750.32 : x
  2. Step 2: Convert to fraction form
    1,674.80/2,513.16 = 750.32/x
  3. Step 3: Cross multiply
    1,674.80x = 2,513.16 × 750.32
  4. Step 4: Simplify right side
    1,674.80x = 1,885,674.21
  5. Step 5: Solve for x
    x = 1,885,674.21/1,674.80
  6. Step 6: Final answer
    x = 1,125.91

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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.