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Finding the Fourth Proportional to 43,590.50, 65,395.48 and 15,888.50

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Solution

The fourth proportional to 43,590.50, 65,395.48 and 15,888.50 is: 23,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,590.50 : 65,395.48 = 15,888.50 : x
  2. Step 2: Convert to fraction form
    43,590.50/65,395.48 = 15,888.50/x
  3. Step 3: Cross multiply
    43,590.50x = 65,395.48 × 15,888.50
  4. Step 4: Simplify right side
    43,590.50x = 1,039,036,083.98
  5. Step 5: Solve for x
    x = 1,039,036,083.98/43,590.50
  6. Step 6: Final answer
    x = 23,836.30

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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.