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Finding the Fourth Proportional to 4,503.88, 6,756.90 and 1,425.88

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Solution

The fourth proportional to 4,503.88, 6,756.90 and 1,425.88 is: 2,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,503.88 : 6,756.90 = 1,425.88 : x
  2. Step 2: Convert to fraction form
    4,503.88/6,756.90 = 1,425.88/x
  3. Step 3: Cross multiply
    4,503.88x = 6,756.90 × 1,425.88
  4. Step 4: Simplify right side
    4,503.88x = 9,634,528.57
  5. Step 5: Solve for x
    x = 9,634,528.57/4,503.88
  6. Step 6: Final answer
    x = 2,139.16

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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.