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Finding the Fourth Proportional to 1,698.63, 2,548.71 and 1,006.66

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Solution

The fourth proportional to 1,698.63, 2,548.71 and 1,006.66 is: 1,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.63 : 2,548.71 = 1,006.66 : x
  2. Step 2: Convert to fraction form
    1,698.63/2,548.71 = 1,006.66/x
  3. Step 3: Cross multiply
    1,698.63x = 2,548.71 × 1,006.66
  4. Step 4: Simplify right side
    1,698.63x = 2,565,684.41
  5. Step 5: Solve for x
    x = 2,565,684.41/1,698.63
  6. Step 6: Final answer
    x = 1,510.44

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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.