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Finding the Fourth Proportional to 4,756.76, 7,133.13 and 1,425.48

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Solution

The fourth proportional to 4,756.76, 7,133.13 and 1,425.48 is: 2,137.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,756.76 : 7,133.13 = 1,425.48 : x
  2. Step 2: Convert to fraction form
    4,756.76/7,133.13 = 1,425.48/x
  3. Step 3: Cross multiply
    4,756.76x = 7,133.13 × 1,425.48
  4. Step 4: Simplify right side
    4,756.76x = 10,168,146.63
  5. Step 5: Solve for x
    x = 10,168,146.63/4,756.76
  6. Step 6: Final answer
    x = 2,137.62

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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.