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Finding the Fourth Proportional to 1,674.88, 2,509.04 and 942.24

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Solution

The fourth proportional to 1,674.88, 2,509.04 and 942.24 is: 1,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.88 : 2,509.04 = 942.24 : x
  2. Step 2: Convert to fraction form
    1,674.88/2,509.04 = 942.24/x
  3. Step 3: Cross multiply
    1,674.88x = 2,509.04 × 942.24
  4. Step 4: Simplify right side
    1,674.88x = 2,364,117.85
  5. Step 5: Solve for x
    x = 2,364,117.85/1,674.88
  6. Step 6: Final answer
    x = 1,411.51

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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.