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Finding the Fourth Proportional to 1,468.56, 2,026.80 and 847.56

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Solution

The fourth proportional to 1,468.56, 2,026.80 and 847.56 is: 1,169.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.56 : 2,026.80 = 847.56 : x
  2. Step 2: Convert to fraction form
    1,468.56/2,026.80 = 847.56/x
  3. Step 3: Cross multiply
    1,468.56x = 2,026.80 × 847.56
  4. Step 4: Simplify right side
    1,468.56x = 1,717,834.61
  5. Step 5: Solve for x
    x = 1,717,834.61/1,468.56
  6. Step 6: Final answer
    x = 1,169.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.