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Finding the Fourth Proportional to 1,784.58, 2,672.99 and 1,472.94

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Solution

The fourth proportional to 1,784.58, 2,672.99 and 1,472.94 is: 2,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.58 : 2,672.99 = 1,472.94 : x
  2. Step 2: Convert to fraction form
    1,784.58/2,672.99 = 1,472.94/x
  3. Step 3: Cross multiply
    1,784.58x = 2,672.99 × 1,472.94
  4. Step 4: Simplify right side
    1,784.58x = 3,937,153.89
  5. Step 5: Solve for x
    x = 3,937,153.89/1,784.58
  6. Step 6: Final answer
    x = 2,206.21

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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.