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Finding the Fourth Proportional to 59,918.60, 89,910.30 and 26,643.80

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Solution

The fourth proportional to 59,918.60, 89,910.30 and 26,643.80 is: 39,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,918.60 : 89,910.30 = 26,643.80 : x
  2. Step 2: Convert to fraction form
    59,918.60/89,910.30 = 26,643.80/x
  3. Step 3: Cross multiply
    59,918.60x = 89,910.30 × 26,643.80
  4. Step 4: Simplify right side
    59,918.60x = 2,395,552,051.14
  5. Step 5: Solve for x
    x = 2,395,552,051.14/59,918.60
  6. Step 6: Final answer
    x = 39,980.11

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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.