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Finding the Fourth Proportional to 43,441.89, 65,168.19 and 15,356.16

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Solution

The fourth proportional to 43,441.89, 65,168.19 and 15,356.16 is: 23,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,441.89 : 65,168.19 = 15,356.16 : x
  2. Step 2: Convert to fraction form
    43,441.89/65,168.19 = 15,356.16/x
  3. Step 3: Cross multiply
    43,441.89x = 65,168.19 × 15,356.16
  4. Step 4: Simplify right side
    43,441.89x = 1,000,733,152.55
  5. Step 5: Solve for x
    x = 1,000,733,152.55/43,441.89
  6. Step 6: Final answer
    x = 23,036.13

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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.