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Finding the Fourth Proportional to 40,388.77, 60,578.83 and 14,094.01

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Solution

The fourth proportional to 40,388.77, 60,578.83 and 14,094.01 is: 21,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,388.77 : 60,578.83 = 14,094.01 : x
  2. Step 2: Convert to fraction form
    40,388.77/60,578.83 = 14,094.01/x
  3. Step 3: Cross multiply
    40,388.77x = 60,578.83 × 14,094.01
  4. Step 4: Simplify right side
    40,388.77x = 853,798,635.81
  5. Step 5: Solve for x
    x = 853,798,635.81/40,388.77
  6. Step 6: Final answer
    x = 21,139.51

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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.