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Finding the Fourth Proportional to 43,897.95, 65,850.57 and 15,816.87

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Solution

The fourth proportional to 43,897.95, 65,850.57 and 15,816.87 is: 23,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,897.95 : 65,850.57 = 15,816.87 : x
  2. Step 2: Convert to fraction form
    43,897.95/65,850.57 = 15,816.87/x
  3. Step 3: Cross multiply
    43,897.95x = 65,850.57 × 15,816.87
  4. Step 4: Simplify right side
    43,897.95x = 1,041,549,905.12
  5. Step 5: Solve for x
    x = 1,041,549,905.12/43,897.95
  6. Step 6: Final answer
    x = 23,726.62

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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.