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Finding the Fourth Proportional to 40,477.86, 60,723.81 and 12,397.25

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Solution

The fourth proportional to 40,477.86, 60,723.81 and 12,397.25 is: 18,598.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,477.86 : 60,723.81 = 12,397.25 : x
  2. Step 2: Convert to fraction form
    40,477.86/60,723.81 = 12,397.25/x
  3. Step 3: Cross multiply
    40,477.86x = 60,723.81 × 12,397.25
  4. Step 4: Simplify right side
    40,477.86x = 752,808,405.33
  5. Step 5: Solve for x
    x = 752,808,405.33/40,477.86
  6. Step 6: Final answer
    x = 18,598.03

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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.