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Finding the Fourth Proportional to 17,898.51, 26,848.32 and 8,539.53

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Solution

The fourth proportional to 17,898.51, 26,848.32 and 8,539.53 is: 12,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.51 : 26,848.32 = 8,539.53 : x
  2. Step 2: Convert to fraction form
    17,898.51/26,848.32 = 8,539.53/x
  3. Step 3: Cross multiply
    17,898.51x = 26,848.32 × 8,539.53
  4. Step 4: Simplify right side
    17,898.51x = 229,272,034.09
  5. Step 5: Solve for x
    x = 229,272,034.09/17,898.51
  6. Step 6: Final answer
    x = 12,809.56

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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.