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Finding the Fourth Proportional to 17,666.60, 26,456.15 and 9,859.01

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Solution

The fourth proportional to 17,666.60, 26,456.15 and 9,859.01 is: 14,764.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,666.60 : 26,456.15 = 9,859.01 : x
  2. Step 2: Convert to fraction form
    17,666.60/26,456.15 = 9,859.01/x
  3. Step 3: Cross multiply
    17,666.60x = 26,456.15 × 9,859.01
  4. Step 4: Simplify right side
    17,666.60x = 260,831,265.84
  5. Step 5: Solve for x
    x = 260,831,265.84/17,666.60
  6. Step 6: Final answer
    x = 14,764.09

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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.