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Finding the Fourth Proportional to 43,655.46, 65,484.81 and 14,073.72

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Solution

The fourth proportional to 43,655.46, 65,484.81 and 14,073.72 is: 21,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,655.46 : 65,484.81 = 14,073.72 : x
  2. Step 2: Convert to fraction form
    43,655.46/65,484.81 = 14,073.72/x
  3. Step 3: Cross multiply
    43,655.46x = 65,484.81 × 14,073.72
  4. Step 4: Simplify right side
    43,655.46x = 921,614,880.19
  5. Step 5: Solve for x
    x = 921,614,880.19/43,655.46
  6. Step 6: Final answer
    x = 21,111.10

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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.