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Finding the Fourth Proportional to 4,763.76, 7,146.03 and 1,253.76

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Solution

The fourth proportional to 4,763.76, 7,146.03 and 1,253.76 is: 1,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.76 : 7,146.03 = 1,253.76 : x
  2. Step 2: Convert to fraction form
    4,763.76/7,146.03 = 1,253.76/x
  3. Step 3: Cross multiply
    4,763.76x = 7,146.03 × 1,253.76
  4. Step 4: Simplify right side
    4,763.76x = 8,959,406.57
  5. Step 5: Solve for x
    x = 8,959,406.57/4,763.76
  6. Step 6: Final answer
    x = 1,880.74

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1.5x scale

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.