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Finding the Fourth Proportional to 40,447.79, 60,699.01 and 14,152.76

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Solution

The fourth proportional to 40,447.79, 60,699.01 and 14,152.76 is: 21,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,447.79 : 60,699.01 = 14,152.76 : x
  2. Step 2: Convert to fraction form
    40,447.79/60,699.01 = 14,152.76/x
  3. Step 3: Cross multiply
    40,447.79x = 60,699.01 × 14,152.76
  4. Step 4: Simplify right side
    40,447.79x = 859,058,217.27
  5. Step 5: Solve for x
    x = 859,058,217.27/40,447.79
  6. Step 6: Final answer
    x = 21,238.70

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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.