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Finding the Fourth Proportional to 4,674.80, 7,012.02 and 1,900.72

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Solution

The fourth proportional to 4,674.80, 7,012.02 and 1,900.72 is: 2,851.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.80 : 7,012.02 = 1,900.72 : x
  2. Step 2: Convert to fraction form
    4,674.80/7,012.02 = 1,900.72/x
  3. Step 3: Cross multiply
    4,674.80x = 7,012.02 × 1,900.72
  4. Step 4: Simplify right side
    4,674.80x = 13,327,886.65
  5. Step 5: Solve for x
    x = 13,327,886.65/4,674.80
  6. Step 6: Final answer
    x = 2,851.01

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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.