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Finding the Fourth Proportional to 4,824, 7,236 and 1,746.72

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Solution

The fourth proportional to 4,824, 7,236 and 1,746.72 is: 2,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,824 : 7,236 = 1,746.72 : x
  2. Step 2: Convert to fraction form
    4,824/7,236 = 1,746.72/x
  3. Step 3: Cross multiply
    4,824x = 7,236 × 1,746.72
  4. Step 4: Simplify right side
    4,824x = 12,639,265.92
  5. Step 5: Solve for x
    x = 12,639,265.92/4,824
  6. Step 6: Final answer
    x = 2,620.08

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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.