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Finding the Fourth Proportional to 43,963.86, 65,931.03 and 14,374.77

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Solution

The fourth proportional to 43,963.86, 65,931.03 and 14,374.77 is: 21,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,963.86 : 65,931.03 = 14,374.77 : x
  2. Step 2: Convert to fraction form
    43,963.86/65,931.03 = 14,374.77/x
  3. Step 3: Cross multiply
    43,963.86x = 65,931.03 × 14,374.77
  4. Step 4: Simplify right side
    43,963.86x = 947,743,392.11
  5. Step 5: Solve for x
    x = 947,743,392.11/43,963.86
  6. Step 6: Final answer
    x = 21,557.33

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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.