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Finding the Fourth Proportional to 68,699.67, 103,075.45 and 26,582.28

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Solution

The fourth proportional to 68,699.67, 103,075.45 and 26,582.28 is: 39,883.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,699.67 : 103,075.45 = 26,582.28 : x
  2. Step 2: Convert to fraction form
    68,699.67/103,075.45 = 26,582.28/x
  3. Step 3: Cross multiply
    68,699.67x = 103,075.45 × 26,582.28
  4. Step 4: Simplify right side
    68,699.67x = 2,739,980,473.03
  5. Step 5: Solve for x
    x = 2,739,980,473.03/68,699.67
  6. Step 6: Final answer
    x = 39,883.46

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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.