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Finding the Fourth Proportional to 9,917.98, 14,878.37 and 2,898.51

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Solution

The fourth proportional to 9,917.98, 14,878.37 and 2,898.51 is: 4,348.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.98 : 14,878.37 = 2,898.51 : x
  2. Step 2: Convert to fraction form
    9,917.98/14,878.37 = 2,898.51/x
  3. Step 3: Cross multiply
    9,917.98x = 14,878.37 × 2,898.51
  4. Step 4: Simplify right side
    9,917.98x = 43,125,104.23
  5. Step 5: Solve for x
    x = 43,125,104.23/9,917.98
  6. Step 6: Final answer
    x = 4,348.17

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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.