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Finding the Fourth Proportional to 4,821.12, 7,232.13 and 1,898.73

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Solution

The fourth proportional to 4,821.12, 7,232.13 and 1,898.73 is: 2,848.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.12 : 7,232.13 = 1,898.73 : x
  2. Step 2: Convert to fraction form
    4,821.12/7,232.13 = 1,898.73/x
  3. Step 3: Cross multiply
    4,821.12x = 7,232.13 × 1,898.73
  4. Step 4: Simplify right side
    4,821.12x = 13,731,862.19
  5. Step 5: Solve for x
    x = 13,731,862.19/4,821.12
  6. Step 6: Final answer
    x = 2,848.27

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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.