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Finding the Fourth Proportional to 40,411.60, 60,606.60 and 14,113.60

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Solution

The fourth proportional to 40,411.60, 60,606.60 and 14,113.60 is: 21,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,411.60 : 60,606.60 = 14,113.60 : x
  2. Step 2: Convert to fraction form
    40,411.60/60,606.60 = 14,113.60/x
  3. Step 3: Cross multiply
    40,411.60x = 60,606.60 × 14,113.60
  4. Step 4: Simplify right side
    40,411.60x = 855,377,309.76
  5. Step 5: Solve for x
    x = 855,377,309.76/40,411.60
  6. Step 6: Final answer
    x = 21,166.63

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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.